AEM Infinity Supported Applications BMW 1995 E36 M3 User Manual

Instruction

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Manual

Infinity Supported Application

1995 BMW E36 M3 (US Spec)

WARNING: This installation is not for the tuning novice! Use this system with EXTREME caution! The AEM
Infinity Programmable EMS allows for total flexibility in engine tuning. Misuse or improper tuning of this
product can destroy your engine! If you are not well versed in engine dynamics and the tuning of engine
management systems DO NOT attempt the installation. Refer the installation to an AEM-trained tuning
shop or call 800-423-0046 for technical assistance.

NOTE: All supplied AEM calibrations, Wizards and other tuning information are offered as potential
starting points only. IT IS THE RESPONSIBILITY OF THE ENGINE TUNER TO ULTIMATELY CONFIRM IF
THE CALIBRATION IS SAFE FOR ITS INTENDED USE. AEM holds no responsibility for any engine damage
that results from the misuse or mistuning of this product!

AEM Performance Electronics, 2205 126th Street Unit A, Hawthorne, CA 90250

AEM Performance Electronics

Phone: [phone] Fax: [phone]

http://www.aemelectronics.com

Instruction Part Number:

Document Build 11/5/2014

BMW 1995 E36 M3 Supported Application2

OVERVIEW

The AEM Infinity EMS can be adapted to most fuel injected engines. When possible, AEM will provide “base cal”
sessions and configuration files for supported applications that have been verified by AEM engineers. These
session and configuration files are starting points only and will need to be modified for your specific application.
This manual lists the files available and suggested changes for your engine. It also includes a pinout with
suggestions for adapting the Infinity ECU to your engine harness. It is the responsibility of the installer to verify this
information before starting the engine.

MODELS

BMW

1995 E36 M3 (US spec) with S50usB30 engine
1992–1995 E36 325I/IS/IC with M50tuB25 engine

DOWNLOADABLE FILES

Files can be downloaded from www.aeminfinity.com. An experienced tuner must be available to configure and
manipulate the data before driving can commence. The Quick Start Guide and Full Manual describe the steps for
logging in and registering at www.aeminfinity.com. These documents are available for download in the Support
section of the AEM Electronics website: http://www.aemelectronics.com/products/support/instructions.

ADAPTER HARNESS OPTIONS

30-3701 Plug & Pin Kit

This kit includes mating connectors and terminals for the Infinity. It also includes a main relay kit which is
necessary for proper power distribution. This kit is best suited for experienced installers who want to build their
own harness.

30-3702 Mini Harness with Flying Leads

This harness includes a fused power distribution center with main relay. Pre-terminated connectors are available
for the internal UEGO sensors and AEMNet. A bag of multi-color flying leads is included to simplify custom
harness builds.

30-3703 Mini Harness with Pins

This harness includes a fused power distribution center with main relay. Pre-terminated connectors are available
for the internal UEGO sensors and AEMNet. 100 pins and 30 sealing plugs are included.

30-3600 O2 Sensor Extension Harness

Extension harness to connect AEM UEGO Wideband O2 sensor to 6-pin Deutsch DTM in Infinity Mini Harnesses
(30-3702/3703).

30-3601 IP67 Comms Cable

USB Mini-B comms cable; 39” long with right angled connector and bayonet style lock.

30-3602 IP67 Logging Cable

USB A-to-A extension cable: 39” long with right angled connector and bayonet style lock.

© 2014 AEM Performance Electronics

IMPORTANT APPLICATION NOTES

3

IMPORTANT APPLICATION NOTES

The test vehicle used for development of this app was an E36 318 sedan with a full S50usB30 swap from a US
spec 1995 E36 M3. The S50usB30 engine is different from the Euro spec M3 engine in that is does NOT have
ITBs or dual continuously variable VANOS. The S50usB30 engine has a large plenum style intake manifold with a
single throttle body and on/off style VANOS on only the intake cam. The S50usB30 engine appears to be nearly
identical to the standard M50tuB25 engine with the only discerning difference being the engine’s displacement
(3.0L versus 2.5L). Both engines from the models listed above use Bosch DME part number 0 261 200 413.
Operation of the Infinity EMS was not verified on the M50tuB25, however, because both engines use the same
DME, both have the same wiring harness pin out and use the same injectors and cam/crank/CLT/IAT sensors.

The injectors used for testing were stock “green top” Bosch injectors (part number 0 280 150 415). These injectors
are undersized for the application and are marginal in providing enough fuel flow (156cc/min @ 50psi) to support
the stock horsepower level. The stock DME runs a high load WOT AFR of 12.8:1. While creating the Infinity base
session, targeting a slightly richer AFR of 12.4:1 resulted in hitting the Primary Injector Duty Limit (Plug­ins>Wizards>Setup Wizard>Diagnostics) value of 95%. It is highly recommended that replacing the stock
injectors with higher flowing injectors be made a priority in order to support any kind of performance modifications
made to the engine.

The S50usB30 engine uses a Bosch 3-pin PWM idle air control (IAC) valve. The 3-pin IAC is driven by a standard
PWM signal as well as an inverted complementary PWM signal. An external circuit is required to invert the normal
PWM output signal as the Infinity is not outfitted with hardware to support this function. A schematic to build this
device is provided in this manual.

The E36 M3 uses a Mass Air Flow (MAF) based injection control strategy in stock form. The base sessions and
configuration files provided are set up for Speed Density using an AEM 3.5Bar MAP sensor (PN 30-2130-50). The
stock MAF sensor is not supported in the provided configuration files. The stock CLT & IAT sensors have been
fully characterized and their calibrations have been inputted into the base session.

The adapter harness used to mate the Infinity EMS to the stock wiring harness was set up to use the stock main
relay that is already on the vehicle. The stock coolant temp gauge is not supported by the Infinity.

© 2014 AEM Performance Electronics

BMW 1995 E36 M3 Supported Application4

PWM IDLE INVERT

Use the following schematic to create a PWM idle invert circuit. This circuit will need to be wired into the Infinity
adapter harness.

GETTING STARTED

Refer to the 10-7100 for EMS 30-7100 Infinity Quick Start Guide for additional information on getting the engine
started with the Infinity EMS.

Import Base Session

E36 BMW M3 base session located in C:\Documents\AEM\Infinity Tuner\Sessions\Base Sessions

© 2014 AEM Performance Electronics

GETTING STARTED

5

IMPORTANT APPLICATION SPECIFIC SETTINGS

Infinity Tuner Wizard Setup

Engine

In the Wizard Engine tab confirm the following settings:

Engine Displacement (L)= 3.00
Number of Cylinders = 6
Engine Cycle Type = 4 Stroke
Ignition Type = Sequential (Coil On Plug)
Firing Order = 1-5-3-6-2-4

Ignition Sync

Add a text grid control to your layout and select the following channels. Once the channels have been added, right
click and set them to Initial Value. Make sure their values match the settings below for initial timing sync.

TrigOffset [degBTDC] = 5.5
CamSyncAdjustment = 65

See QuickStart Guide section Setup: Ignition Sync for instructions on timing sync.

Cam/Crank

In the Wizard Cam/Crank tab confirm the following setting:

Universal 60-2 Mag Crank & 1 Hall Cam

Injector Setup

In the Wizard Injector Setup tab confirm the following setting:
Number of Injectors = 6

Low Side Assignment – Malfunction Indicator Lamp

In the Wizard LowSide Assignment tab confirm the following settings:

LS2 Setup:

Frequency = 30 Hz
LS2_Duty X-Axis = Engine Speed [RPM]
LS2_Duty Y-Axis = MILOutput

© 2014 AEM Performance Electronics

BMW 1995 E36 M3 Supported Application6

LowSide Assignment – PWM Idle

In the Wizard LowSide Assignment tab confirm the following settings:

LS3 Setup:

Frequency = 100 Hz
LS3_Duty X-Axis = Engine Speed [RPM]
LS3_Duty Y-Axis = Idle Position

LowSide Assignment – VANOS

In the Wizard LowSide Assigment tab confirm the following settings:

LS4 Setup:

Frequency = 30 Hz
LS4_Duty X-Axis = Engine Speed [RPM]
LS4_Duty Y-Axis = VTEC_Active

In the Wizard Honda VTEC tab confirm the following settings:

VTEC Off Below RPM = 2000
VTEC On Above RPM = 2100
VTEC Off Below Throttle = 35
VTEC On Above Throttle = 40

Input Function Assignment

In the Input Function Assignment tab, choose Vehicle Speed Input and confirm the following setting:
Vehicle Speed Calibration = 0.50

© 2014 AEM Performance Electronics

PINOUT

Infinity

Pin

Hardware

Reference

BMW E36 M3

Function

BMW E36 M3

Pin Destination

Hardware Specification

Notes

C1-1

LowsideSwitch_4

VANOS

7

Lowside switch, 4A max, NO
internal fly back diode.

See Setup Wizard Page "LowSide Assignment Tables"
for output assignment, Honda VTEC f or VANOS
triggering and 2D table "LS3_Duty [%]" for on/of f
activation.

C1-2

LowsideSwitch_5

LS5

Lowside switch, 4A max with
internal fly back diode. Inductive
load should NOT have full time
power.

See Setup Wizard Page "LowSide Assignment Tables"
for output assignment and 2D table "LS5_Duty [%]" f or
activation.

C1-3

LowsideSwitch_6

LS6

Lowside switch, 4A max with
internal fly back diode. Inductive
load should NOT have full time
power.

See Setup Wizard Page "LowSide Assignment Tables"
for output assignment and 2D table "LS6_Duty [%]" f or
activation.

C1-4

UEGO 1 Heat

UEGO 1 Heat

Use 30-3600

Inf inity O2

Sensor

Extension

Harness

Bosch UEGO controller

Lowside switch for UEGO heater control. Connect to
pin 4 of Bosch UEGO sensor. NOTE that pin 3 of the
Sensor is heater (+) and must be power by a fused/
switched 12V supply .

C1-5

UEGO 1 IA

UEGO 1 IA

Trim Current signal. Connect to pin 2 of Bosch UEGO
sensor

C1-6

UEGO 1 IP

UEGO 1 IP

Pumping Current signal. Connect to pin 6 of Bosch
UEGO sensor

C1-7

UEGO 1 UN

UEGO 1 UN

Nernst Voltage signal. Connect to pin 1 of Bosch
UEGO sensor

C1-8

UEGO 1 VM

UEGO 1 VM

Virtual Ground signal. Connect to pin 5 of Bosch
UEGO sensor.

C1-9

Flash_Enable

Flash Enable

10K pulldown

Not usually needed f or automatic f irmware updates
through Inf inity Tuner. If connection errors occur
during update, connect 12 v olts to this pin before
proceeding with upgrade. Disconnect the 12 volts
signal after the update.

C1-10

+12V_R8C_CPU

Battery Perm

Power

26

Dedicated power management
CPU

Full time battery power. MUST be powered before the
ignition switch input is triggered (See C1-65).

C1-11

Coil 4

Coil 4

23

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C1-12

Coil 3

Coil 3

52

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C1-13

Coil 2

Coil 2

51

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C1-14

Coil 1

Coil 1

50

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C1-15

Coil 6

Coil 6

24

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C1-16

Coil 5

Coil 5

25

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

IMPORTANT APPLICATION SPECIFIC SETTINGS

7

© 2014 AEM Performance Electronics

BMW 1995 E36 M3 Supported Application8

C1-17

LowsideSwitch_2

MIL

8

Lowside switch, 4A max, NO
internal fly back diode.

See Wizard page "LowSide Assignment Tables" f or
output assignment and 2D table "LS4_Duty [%]" f or
activation. MIL Activ ates when any of the following
flags are true: ErrorAirTemp, ErrorBaro,
ErrorCoolantTemp, ErrorEBP, ErrorFuelPressure,
UEGO_0_Diag_error, UEGO_1_Diag_error,
ErrorMAFAnalog, ErrorMAFDigital, ErrorMAP,
ErrorOilPressure, ErrorThrottle.

C1-18

LowsideSwitch_3

PWM IDLE

2

Lowside switch, 4A max with
internal fly back diode. Inductive
load should NOT have full time
power.

See Setup Wizard Page "LowSide Assignment Tables"
for output assignment and 2D table "LS2_Duty [%]" f or
activation. *3-wire IAC requires inverted signal to

pin 29*

C1-19

AGND_1

Sensor Ground

44

Dedicated analog ground

Analog 0-5V sensor ground

C1-20

AGND_1

Sensor Ground

to MAP

sensor

Dedicated analog ground

Analog 0-5V sensor ground

C1-21

Crank Position
Sensor Hall

Crank Position

Sensor Hall

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Cam/Crank for options.

C1-22

Cam Position
Sensor 1 Hall

Cam Position
Sensor 1 Hall

17

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Cam/Crank for options.

C1-23

Digital_In_2

Cam Position
Sensor 2 Hall

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Cam/Crank for options.

C1-24

Digital_In_3

Turbo Speed

Hz

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Turbo Speed for calibration
constant. TurboSpeed [RPM] = Turbo [Hz] * Turbo
Speed Calibration.

C1-25

Digital_In_4

Vehicle Speed

Sensor

42

10K pullup to 12V. Will work with
ground or floating switches.

See Setup Wizard page Vehicle Speed for calibration
constant.

C1-26

Digital_In_5

Flex Fuel

10K pullup to 12V. Will work with
ground or floating switches.

See channel FlexDigitalIn [Hz] f or raw frequency input
data.

C1-27

Knock Sensor 1

Knock Sensor

1

70

Dedicated knock signal processor

See Setup Wizard page Knock Setup f or options.

C1-28

Knock Sensor 2

Knock Sensor

2

69

Dedicated knock signal processor

See Setup Wizard page Knock Setup f or options.

C1-29

+12V_Relay_
Control

+12V Relay

Control

27

0.7A max ground sink f or external
relay control

Will activate at key on and at key of f according to the
conf iguration settings.

C1-30

Power Ground

Ground

6

Power Ground

Connect directly to battery ground

C1-31

CANL_Aout

AEMNet CANL

Dedicated High Speed CAN
Transceiv er

Recommend twisted pair (one twist per 2") with
terminating resistor. Contact AEM for additional
information.

C1-32

CANH_Aout

AEMNet CANH

Dedicated High Speed CAN
Transceiv er

Recommend twisted pair (one twist per 2") with
terminating resistor. Contact AEM for additional
information.

C1-33

LowsideSwitch_1

Boost Control

Lowside switch, 4A max with
internal fly back diode. Inductive
load should NOT have full time
power.

See Setup Wizard page Boost Control for options.
Monitor BoostControl [%] channel for output state.

C1-34

LowsideSwitch_0

Fuel Pump

1

Lowside switch, 4A max, NO
internal fly back diode.

Switched ground. Will prime f or 2 seconds at key on
and activ ate if RPM > 0.

C1-35

Analog_In_7

Throttle

Position Sensor

73

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See the Setup Wizard
Set Throttle Range page f or automatic min/max
calibration. Monitor the Throttle [%] channel. Also
DB1_TPSA [%] for DBW applications.

© 2014 AEM Performance Electronics

PINOUT

C1-36

Analog_In_8

MAP Sensor

to MAP

sensor

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See the Setup Wizard
Set Manifold Pressure page f or setup and calibration.
Monitor the MAP [kPa] channel.

C1-37

Analog_In_9

Fuel Pressure

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See the Setup Wizard
Fuel Pressure page for setup and calibration. Monitor
the FuelPressure [psig] channel.

C1-38

Analog_In_10

Baro Sensor

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See the Setup Wizard
Barometric Pressure page for setup and calibration.
Monitor the BaroPress [kPa] channel.

C1-39

Analog_In_11

Shift Switch

Input

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See the 1D lookup
table 'ShiftSwitch' f or setup. Also assignable to
multiple f unctions. See Setup Wizard for details.

C1-40

Analog_In_12

Mode Switch

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See the 1D lookup
table 'ModeSwitch' for input state. A multi-position
rotary switch such as AEM P/N 30-2056 is
recommended. Also assignable to multiple f unctions.
See Setup Wizard for details.

C1-41

+5V_Out_1

+5V Out

59

Regulated, fused +5V supply f or
sensor power

Analog sensor power

C1-42

+5V_Out_1

+5V Out

to MAP

sensor

Regulated, fused +5V supply f or
sensor power

Analog sensor power

C1-43

HighsideSwitch_1

HS1 (switched

12V)

0.7A max, High Side Solid State
Relay

See Setup Wizard page 'HighSide Assigment Tables' f or
conf iguration options. See 2D lookup table 'HS1_Table'
for activation settings.

C1-44

HighsideSwitch_0

HS0 (switched

12V)

0.7A max, High Side Solid State
Relay

See Setup Wizard page 'HighSide Assigment Tables' f or
conf iguration options. See 2D lookup table 'HS0_Table'
for activation settings.

C1-45

Crank Position
Sensor VR+

Crank Position

Sensor VR+

16

Dif ferential Variable Reluctance
Zero Cross Detection

See Setup Wizard page Cam/Crank for options.
C1-46

Crank Position
Sensor VR-

Crank Position

Sensor VR-

43

C1-47

Cam Position
Sensor 1 VR-

Cam Position
Sensor 1 VR-

Dif ferential Variable Reluctance
Zero Cross Detection

See Setup Wizard page Cam/Crank for options.
C1-48

Cam Position
Sensor 1 VR+

Cam Position

Sensor 1 VR+

C1-49

VR+_In_2

Non Driv en

Left Wheel

Speed Sensor

+

Dif ferential Variable Reluctance
Zero Cross Detection

See Non Driven Wheel Speed Calibration in the Setup
Wizard Vehicle Speed page.

C1-50

VR-_In_2

Non Driv en

Left Wheel

Speed Sensor -

C1-51

VR-_In_3

Driv en Left

Wheel Speed

Sensor -

Dif ferential Variable Reluctance
Zero Cross Detection

See Driven Wheel Speed Calibration in the Setup
Wizard Vehicle Speed page.

9

© 2014 AEM Performance Electronics

BMW 1995 E36 M3 Supported Application10

C1-52

VR+_In_3

Driv en Left

Wheel Speed

Sensor +

C1-53

DBW1 Motor -

DBW Motor

Control Close

5.0A max Throttle Control Hbridge
Driv e

+12V to close

C1-54

DBW1 Motor +

DBW Motor

Control Open

5.0A max Throttle Control Hbridge
Driv e

+12V to open

C1-55

Power Ground

Ground

28

Power Ground

Connect directly to battery ground

C1-56

Injector 6

Injector 6

4

Saturated or peak and hold, 3A
max continuous

Injector 6

C1-57

Injector 5

Injector 5

3

Saturated or peak and hold, 3A
max continuous

Injector 5

C1-58

Injector 4

Injector 4

5

Saturated or peak and hold, 3A
max continuous

Injector 4

C1-59

Injector 3

Injector 3

31

Saturated or peak and hold, 3A
max continuous

Injector 3

C1-60

Power Ground

Ground

34

Power Ground

Connect directly to battery ground

C1-61

+12V

+12V In

12 v olt power f rom relay

12 v olt power f rom relay. Relay must be controlled by
+12V Relay Control signal, pin C1-29 abov e.

C1-62

Injector 2

Injector 2

32

Saturated or peak and hold, 3A
max continuous

Injector 2

C1-63

Injector 1

Injector 1

33

Saturated or peak and hold, 3A
max continuous

Injector 1

C1-64

+12V

+12V In

54

12 v olt power f rom relay

12 v olt power f rom relay. Relay must be controlled by
+12V Relay Control signal pin C1-29 above.

C1-65

+12V_SW

Ignition Switch

56

10K pulldown

Full time battery power must be av ailable at C1-10
before this input is triggered.

C1-66

Analog_In_Temp_
1

Coolant Temp

Sensor

78

12 bit A/D, 2.49K pullup to 5V

See "Coolant Temperature" Setup Wizard f or selection.

C1-67

Analog_In_Temp_
2

Intake Air

Temperature

77

12 bit A/D, 2.49K pullup to 5V

See "Air Temperature" Setup Wizard for selection.

C1-68

Harness_Analog_I
n_Temp_3

Oil

Temperature

Sensor

12 bit A/D, 2.49K pullup to 5V

See 1D table OilTempCal table f or calibration data and
OilTemp [C] f or channel data.

C1-69

Stepper_2A

Stepper 2A

Automotiv e, Programmable
Stepper Driv er, up to 28V and
±1.4A

Be sure that each internal coil of the stepper motor are
properly paired with the 1A/1B and 2A/2B ECU outputs.
Supports Bi-Polar stepper motors only .

C1-70

Stepper_1A

Stepper 1A

Automotiv e, Programmable
Stepper Driv er, up to 28V and
±1.4A

Be sure that each internal coil of the stepper motor are
properly paired with the 1A/1B and 2A/2B ECU outputs.
Supports Bi-Polar stepper motors only .

C1-71

Stepper_2B

Stepper 2B

Automotiv e, Programmable
Stepper Driv er, up to 28V and
±1.4A

Be sure that each internal coil of the stepper motor are
properly paired with the 1A/1B and 2A/2B ECU outputs.
Supports Bi-Polar stepper motors only .

C1-72

Stepper_1B

Stepper 1B

Automotiv e, Programmable
Stepper Driv er, up to 28V and
±1.4A

Be sure that each internal coil of the stepper motor are
properly paired with the 1A/1B and 2A/2B ECU outputs.
Supports Bi-Polar stepper motors only .

C1-73

Power Ground

Ground

55

Power Ground

Connect directly to battery ground

C2-1

DBW2 Motor +

DBW Motor

Control Open

5.0A max Throttle Control Hbridge
Driv e

+12V to open

C2-2

DBW2 Motor -

DBW Motor

Control Close

5.0A max Throttle Control Hbridge
Driv e

+12V to close

C2-3

Power Ground

Ground

Power Ground

Connect directly to battery ground

C2-4

Injector 7

Injector 7

Saturated or peak and hold, 3A
max continuous

Injector 7

© 2014 AEM Performance Electronics

PINOUT

C2-5

Injector 8

Injector 8

Saturated or peak and hold, 3A
max continuous

Injector 8

C2-6

Injector 9

Injector 9

Saturated or peak and hold, 3A
max continuous

Injector 9

C2-7

Injector 10

Injector 10

Saturated or peak and hold, 3A
max continuous

Injector 10

C2-8

Power Ground

Ground

Power Ground

Connect directly to battery ground

C2-9

+12V

+12V In

12 v olt power f rom relay

12 v olt power f rom relay. Relay must be controlled by
+12V Relay Control signal, pin C1-29 abov e.

C2-10

Injector 11

Injector 11

Saturated or peak and hold, 3A
max continuous

Not used

C2-11

Injector 12

Injector 12

Saturated or peak and hold, 3A
max continuous

Not used

C2-12

Analog_In_17

A/C Analog

Request

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See Setup Wizard
Input Functions page f or input selection. See
AC_Request_In 1-axis table for activation logic.

C2-13

Analog_In_18

DBW_APP1

[%]

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU.

C2-14

Analog_In_19

DBW_APP2

[%]

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU.

C2-15

Analog_In_Temp_
4

Charge Out

Temperature

12 bit A/D, 2.49K pullup to 5V

See ChargeOutTemp [C] table f or calibration data and
ChargeOutTemp [C] f or channel data.

C2-16

Analog_In_Temp_
5

Airbox

Temperature

12 bit A/D, 2.49K pullup to 5V

See AirboxTemp [C] table f or calibration data and
AirboxTemp [C] for channel data.

C2-17

Analog_In_Temp_
6

Fuel

Temperature

12 bit A/D, 2.49K pullup to 5V

See FuelTemp [C] table f or calibration data and
FuelTemp [C] for channel data.

C2-18

Analog_In_13

Oil Pressure

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See Setup Wizard Oil
Pressure page for setup options. See OilPressure
[psig] for channel data.

C2-19

Analog_In_14

Traction

Control Mode /

Sensitivity

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See the
TC_SlipTrgtTrim [MPH] 1-axis table. A multi-position
rotary switch such as AEM P/N 30-2056 is
recommended.

C2-20

Analog_In_15

Exhaust Back

Pressure

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See Setup Wizard
Exhaust Pressure page for setup options. See
EBPress [kPa] f or channel data.

C2-21

Analog_In_16

DBW1_TPSB

[%]

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU.

C2-22

+5V_Out_2

+5V Out

Regulated, fused +5V supply f or
sensor power

Analog sensor power

C2-23

+5V_Out_2

+5V Out

Regulated, fused +5V supply f or
sensor power

Analog sensor power

11

© 2014 AEM Performance Electronics

BMW 1995 E36 M3 Supported Application12

C2-24

+5V_Out_2

+5V Out

Regulated, fused +5V supply f or
sensor power

Analog sensor power

C2-25

VR+_In_5

Driv en Right

Wheel Speed

Sensor +

Dif ferential Variable Reluctance
Zero Cross Detection

See Driven Wheel Speed Calibration in the Setup
Wizard Vehicle Speed page.

C2-26

VR-_In_5

Driv en Right

Wheel Speed

Sensor -

C2-27

VR-_In_4

Non Driv en

Right Wheel

Speed Sensor -

Dif ferential Variable Reluctance
Zero Cross Detection

See Non Driven Wheel Speed Calibration in the Setup
Wizard Vehicle Speed page.

C2-28

V R+_In_4

Non Driv en

Right Wheel

Speed Sensor

+

C2-29

LowsideSwitch_9

Tachometer

47

Lowside switch, 4A max with
internal fly back diode, 2.2K 12V
pullup. Inductiv e load should NOT
have full time power.

See Setup Wizard page Tacho for configuration options.
C2-30

AGND_2

Sensor Ground

Dedicated analog ground

Analog 0-5V sensor ground

C2-31

AGND_2

Sensor Ground

Dedicated analog ground

Analog 0-5V sensor ground

C2-32

AGND_2

Sensor Ground

Dedicated analog ground

Analog 0-5V sensor ground

C2-33

Analog_In_20

Spare Analog

Input

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU.

C2-34

Analog_In_21

3 Step Enable

Switch

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See 3StepSwitch 1-axis
table for setup.

C2-35

Analog_In_22

USB Logging

Activate

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See
USBLoggingRequestIn channel for input state. See
Setup Wizard page USB Logging f or configuration
options.

C2-36

Analog_In_23

Charge Out

Pressure

12 bit A/D, 100K pullup to 5V

0-5V analog signal. Use +5V Out pins as power supply
and Sensor Ground pins as the low ref erence. Do not
connect signals ref erenced to +12V as this can
permanently damage the ECU. See ChargeOutPress
[kPa] channel for input state. See Setup Wizard page
Charge Out Pressure f or calibration options.

C2-37

Digital_In_6

Spare Digital

Input

No pullup. Will work with TTL
signals.

Input can be assigned to diff erent pins. See Setup
Wizard page Input Function Assignments for input
mapping options.

C2-38

Digital_In_7

Clutch Switch

No pullup. Will work with TTL
signals.

See ClutchSwitch 1-axis table for setup options. Input
can be assigned to different pins. See Setup Wizard
page Input Function Assignments f or input mapping
options.

C2-39

Power Ground

Ground

Power Ground

Connect directly to battery ground

C2-40

Power Ground

Ground

Power Ground

Connect directly to battery ground

C2-41

CanH_Bout

CANH

Dedicated High Speed CAN
Transceiv er

Not used

C2-42

CanL_Bout

CANL

Dedicated High Speed CAN
Transceiv er

Not used

© 2014 AEM Performance Electronics

PINOUT

C2-43

LowsideSwitch_8

LS8

Lowside switch, 4A max with
internal fly back diode. Inductive
load should NOT have full time
power.

See Setup Wizard Page "LowSide Assignment Tables"
for output assignment and 2D table "LS8_Duty [%]" f or
activation.

C2-44

LowsideSwitch_7

LS7

Lowside switch, 4A max with
internal fly back diode. Inductive
load should NOT have full time
power.

See Setup Wizard Page "LowSide Assignment Tables"
for output assignment and 2D table "LS7_Duty [%]" f or
activation.

C2-45

UEGO 2 VM

UEGO 2 VM

Bosch UEGO Controller

Virtual Ground signal. Connect to pin 5 of Bosch
UEGO sensor.

C2-46

UEGO 2 UN

UEGO 2 UN

Nernst Voltage signal. Connect to pin 1 of Bosch
UEGO sensor

C2-47

UEGO 2 IP

UEGO 2 IP

Pumping Current signal. Connect to pin 6 of Bosch
UEGO sensor

C2-48

UEGO 2 IA

UEGO 2 IA

Trim Current signal. Connect to pin 2 of Bosch UEGO
sensor

C2-49

UEGO 2 HEAT

UEGO 2 HEAT

Lowside switch for UEGO heater control. Connect to
pin 4 of Bosch UEGO sensor. NOTE that pin 3 of the
Sensor is heater (+) and must be power by a fused/
switched 12V supply .

C2-50

+12V_R8C_CPU

Battery Perm

Power

Dedicated power management
CPU

Optional full time battery power. MUST be powered
before the ignition switch input is triggered (See C1-65).

C2-51

Coil 7

Coil 7

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C2-52

Coil 8

Coil 8

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C2-53

Coil 9

Coil 9

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C2-54

Coil 10

Coil 10

25 mA max source current

0-5V Falling edge fire. DO NOT connect directly to coil
primary . Must use an ignitor OR CDI that accepts a
FALLING edge f ire signal.

C2-55

HighsideSwitch_2

Fuel Pump

Multi-function pin depending on
hardware conf iguration

+12V High Side Driv e. Will prime f or 2 seconds at key
on and activate if RPM > 0.

C2-56

Not used

Not used

Not used

Not used

13

© 2014 AEM Performance Electronics

BMW 1995 E36 M3 Supported Application14

BMW E36 M3 Harness Connector Viewed from Terminal Side

AEM Infinity Connectors Viewed from Wire Side

© 2014 AEM Performance Electronics

PINOUT

15

12 MONTH LIMITED WARRANTY

Advanced Engine Management Inc. warrants to the consumer that all AEM High Performance
products will be free from defects in material and workmanship for a period of twelve (12)
months from date of the original purchase. Products that fail within this 12-month warranty period
will be repaired or replaced at AEM’s option, when determined by AEM that the product failed
due to defects in material or workmanship. This warranty is limited to the repair or replacement
of the AEM part. In no event shall this warranty exceed the original purchase price of the AEM
part nor shall AEM be responsible for special, incidental or consequential damages or cost
incurred due to the failure of this product. Warranty claims to AEM must be transportation
prepaid and accompanied with dated proof of purchase. This warranty applies only to the
original purchaser of product and is non-transferable. All implied warranties shall be limited in
duration to the said 12-month warranty period. Improper use or installation, accident, abuse,
unauthorized repairs or alterations voids this warranty. AEM disclaims any liability for
consequential damages due to breach of any written or implied warranty on all products
manufactured by AEM. Warranty returns will only be accepted by AEM when accompanied by a
valid Return Merchandise Authorization (RMA) number. Product must be received by AEM
within 30 days of the date the RMA is issued.

Please note that before AEM can issue an RMA for any electronic product, it is first necessary
for the installer or end user to contact the EMS tech line at 1-800-423-0046 to discuss the
problem. Most issues can be resolved over the phone. Under no circumstances should a
system be returned or a RMA requested before the above process transpires.

AEM will not be responsible for electronic products that are installed incorrectly, installed in a
non-approved application, misused, or tampered with.

Any AEM electronics product can be returned for repair if it is out of the warranty period. There
is a minimum charge of $50.00 for inspection and diagnosis of AEM electronic parts. Parts
used in the repair of AEM electronic components will be extra. AEM will provide an estimate of
repairs and receive written or electronic authorization before repairs are made to the product.

© 2014 AEM Performance Electronics