AEM 30-3520 Infinity Plug Play Harnesses User Manual

Instruction

STOP!

THIS PRODUCT HAS LEGAL RESTRICTIONS.

READ THIS BEFORE INSTALLING/USING!

THIS PRODUCT MAY BE USED SOLELY ON VEHICLES USED IN SANCTIONED COMPETITION WHICH MAY
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STATE DETAILS.)

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Manual

P/N 30-3520

2003–2006 Nissan 350Z/Infiniti G35

Manual Transmission

Plug & Play Adapter Harness

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: 10-3520

Document Build 9/5/2014

2

P/N 30-3520

OVERVIEW

This Infinity EMS kit was designed for the 2003–2006 Nissan 350Z (manual transmission), 2003–2006
Infiniti G35 (manual transmission). The kit is “plug and play” so no cutting or splicing is necessary. The
base configuration files available for the Infinity ECU are starting points only and will need to be modified
for your specific application.

Included in these instructions are descriptions of important differences between using the factory Nissan/
Infiniti ECU and using the AEM Infinity ECU. For example, the cruise control feature is not supported
with the AEM Infinity, but the cruise control buttons are available for miscellaneous inputs such as hi/low
boost, traction control, 2-step rev limiter, etc.

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. Nissan 350Z and Infiniti G35 base sessions are located in C:
\Documents\AEM\Infinity Tuner\Sessions\Base Sessions

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

Downloadable files for Nissan 350Z and Infiniti G35

OPTIONS

30-2001 UEGO Wideband O2 Sensor

Bosch LSU4.2 Wideband O2 Sensor that connects to AEM 30-3600 UEGO Wideband O2 Sensor
Extension Harness

30-3600 UEGO Wideband O2 Sensor Extension Harness

Extension harness to connect AEM UEGO Wideband O2 sensor to 6-pin Deutsch

30-3602 IP67 Logging Cable

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

7107-XXXX-66 Infinity-10 Nissan 350Z (XXXX = serial number)
7110-XXXX-67 Infinity-8 Nissan 350Z (XXXX = serial number)

© 2014 AEM Performance Electronics

INFINITY CONNECTORS

The AEM Infinity EMS uses the MX123 Sealed Connection System
from Molex. AEM strongly recommends that users become familiar
with the proper tools and procedures for working with these high
density connectors before attempting any modifications. The entire
Molex MX123 User Manual can be downloaded direct from Molex at:

http://www.molex.com/mx_upload/family//MX123UserManual.pdf

INFINITY ADAPTER HARNESS

Included with the 350Z/G35 kit is an adapter harness. This is used to make the connection between the
AEM Infinity EMS and the 350Z/G35 wiring harness plug and play. This is depicted below with the 73-pin
and 56-pin connectors and the 350Z/G35 header. There are also a few other integrated connectors within
this harness described below.

2003–2006 Nissan 350Z/Infiniti G35

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© 2014 AEM Performance Electronics

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Available I/O

Typical Use

Notes

Component

Wiring

Fuel Press

This is used for monitoring
fuel pressure input to the
Infinity. It can also be used
to increase or decrease
injector fuel pulse to
compensate for a failing
fuel pump.

Typical electronic fuel
injection fuel pressure
varies from 30-100psi.

AEM carries 0–5V
fuel pressure
sensors (sold
separately).

This w ire goes
directly to the signal
wire of the pressure
sensor.

Air Temp

Air temperature is typically
used for fuel and ignition
timing correction.

The 350Z/G35 comes
standard with a MAF
sensor which has an
integrated intake air
temperature sensor. This
wire is run in parallel with
the stock sensor. This
means if an aftermarket
sensor is to be wired
using this pin, the factory
MAF sensor must be
disconnected or else the
signal will be skewed
drastically.

AEM carries air
temperature
sensors (sold
separately).
How ever, the
Infinity can accept
any thermistor
sensor and can be
calibrated in the
Infinity Tuner
software.

Intake air temp
sensors have two
wires with no
polarity.

P/N 30-3520

Lambda #1 and Lambda #2 plugs are for connecting UEGO wideband Bosch LSU4.2 sensors (AEM 30-

2001) for 2003-2004.5 models only. The UEGO extension harness (AEM 30-3600) mates the adapter
harness to the sensor (1 required for each sensor used). The AEM Infinity EMS supports the OEM
UEGO sensors on 2004.5+ vehicles through the plug and play harness. The Lambda #1, Lambda #2, and
Battery+12V connections above can be ignored on 2004.5+ applications (assuming the OEM UEGO
systems have been left untouched).

AEMNet is an open architecture based on CAN 2.0 which provides the ability for multiple enabled
devices, such as dashboards, data loggers, etc., to easily communicate with one another through two
twisted cables (CAN+/CAN-).

The 2-pin Flash Enable connector is used as a
secondary hardware flashing option by jumping the
two wires together using the included shunt
connector. Note: Flashing will normally be performed
in the software not using this connector.

Integrated in the 350Z/G35 PnP harness is an
“auxiliary” connector. This is a Deutsch DTM 12P
connector (shown on right) and is used to adapt many
common ancillary inputs and outputs easily. Included
in the kit are a DTM 12P mating connector, 12 DTM
terminals, and a DTM 12P wedgelock. If used, these
components will need to be terminated by the
installer or end user with 16-22awg wire (not included). Note: Pin numbering is molded into the
connector, as shown.

© 2014 AEM Performance Electronics

2003–2006 Nissan 350Z/Infiniti G35

Available I/O

Typical Use

Notes

Component

Wiring

Sensor Ground

Isolated ground for
inputs.

This is not the same as a
power ground or chassis
ground.

This is shared for
the Fuel Press,

Air Temp, MAP
(Manifold Press),
Ethanol Sensor,

etc.

This should be wired
to the ground pin of
the following: Fuel

Press, Air Temp,
MAP, and Ethanol
Sensor.

5V Reference

5 volt supply for the
following aux inputs.

When measured with a
voltmeter, it is normal to
not measure exactly 5V.

This is shared for
the Fuel Press,

MAP (Manifold
Press), and
Ethanol Sensor

inputs.

This should be wired
to the voltage
reference pin of the
following: Fuel

Press, MAP, and
Ethanol Sensor.

MAP (Manifold

Press)

Manifold pressure is used
for speed density fuel
calculation, ignition timing
correction, 02 feedback,
boost control, variable
valve control, ancillary
outputs, etc.

Electronic fuel injection is
calculated in absolute
pressure not gauge
pressure.

AEM carries MAP
sensors (sold
separately).
How ever, the
Infinity can accept
any 0–5V pressure
sensor and can be
calibrated in the
Infinity Tuner
software.

This should be wired
directly to the MAP
sensor's signal pin.

Ethanol Sensor

This is used for
customers who are
converting their vehicle to
utilize ethanol fuels such
as E85 or E98.

This digital input can be
used for other functions
as w ell.

The GM Fuel
Composition Sensor
(FCS) is the most
commonly used for
converting a vehicle
to flex fuel.

This pin needs to be
wired directly to the
signal pin of the fuel
composition sensor.

Boost Control

Solenoid

This is used to operate a
12V PWM solenoid.

Boost control solenoids
can be normally open (NO)
or normally closed (NC).
This w ill change the duty
cycle strategy but is also
depends upon how the
wastegate is plumbed
with hoses.

AEM carries boost
control solenoids
(sold separately).
How ever, the
Infinity can control
most factory boost
control solenoids.

Solenoids have two
wires and have no
polarity.

Power from

Relay

Can be used for many
things, however, this 12V
source was implemented
to be paired with the

Boost Control
Solenoid.

This 12V is coming
through the vehicle's main
relay.

Because of using
shared power, this
should only be used
for low current
electronics.

N/A

High Side

Output

Can be used to activate
the 12V side of a solenoid

If attempting to drive a
component over 4amps, a
relay must be used.

The Infinity can
directly drive an
electronic
component up to
4amps max, such
as a boost solenoid.

For a relay, this
should be wired to
terminal 86 (or 85).
Supply chassis
ground to the
opposite terminal 85
(or 86). If directly
driving a low current
component, wire this
to the 12V terminal.

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© 2014 AEM Performance Electronics

6

Available I/O

Typical Use

Notes

Component

Wiring

Boost Target

Trim Selector

Input

Can be used for to trigger
multiple boost targets.

This analog input can be
used for other functions
as w ell.

AEM 12 Position
Universal Trim Pot
(or typical
potentiometer). Can
also be used with
any simple ON/OFF
sw itch.

This w ire should be
routed to the signal
output of the
component. If used
with a simple ON/
OFF switch, route
the opposite terminal
to an Infinity sensor
ground.

Oil

Temperature

Oil temperature is typically
used for engine protection
and logging.

This analog input can be
used for other functions
as w ell.

AEM carries
temperature
sensors (sold
separately).
How ever, the
Infinity can accept
any thermistor
sensor and can be
calibrated in the
Infinity Tuner
software.

Intake air temp
sensors have two
wires with no
polarity.

No Lift Shift

Trigger

Cutting fuel and/or cutting
spark and/or retarding
ignition timing when
shifting gears w ithout
releasing the throttle
pedal.

Cut time is typically 200–
300mS. Ignition retard is
typically 20degree with a
50mS ramp-in time after
the fuel cut. Ignition cut is
not commonly used.

AEM 12 Position
Universal Trim Pot
(or typical
potentiometer). Can
also be used with
any simple ON/OFF
sw itch.

This w ire should be
routed to the signal
output of the
component. If used
with a simple ON/
OFF switch, route
the opposite terminal
to an Infinity sensor
ground.

P/N 30-3520

DRIVE-BY-WIRE

The VQ35DE engine uses a single throttle body controlled via drive-by-wire (DBW).
The AEM Infinity supports traction control methods using DBW, fuel cut, and/or spark cut.

As shown, there is a Drive By Wire Wizard
that needs to be setup in order to calibrate
the specific Nissan/Infiniti pedal and throttle
position sensors accurately. When connected
to the Infinity EMS with the engine OFF, go to
Plug-in | Wizards | Drive By Wire Wizard...
Once the wizard is selected, follow the step­by-step instructions.

© 2014 AEM Performance Electronics

Note that there is also a DBW Tuning
section in the Plug-in | Wizards | Setup
Wizard… However, most of the
channels in here will already be set up
properly from the AEM base session
file.

There are a few integrated DBW fail
safes incorporated into the Infinity system. For instance, if the accelerator pedal and throttle position
sensors do not track each other, or if the maximum DBW current is exceeded, there will be a fatal error
which will kill the engine for safety purposes. If the fatal error triggers, the AEM Infinity notifies the driver
by illuminating the Engine Malfunction Lamp (EML). This error will reset when the ignition key is cycled
or if the problem is fixed.

CAN BUS

The AEM Infinity EMS for the 2003-2006 Nissan 350Z and Infiniti G35 supports the majority of the OEM
features including: Tachometer, Coolant Temperature Gauge, MIL light, coolant fans, steering angle,
steering rate, brake pressure, brake switch, wheel speed sensors, vehicle speed, A/C Request Button,
and Fuel Consumption gauge (MPG).

2003–2006 Nissan 350Z/Infiniti G35

7

Rather than OBD2 diagnostics, the SES-Service Engine Soon light is now dedicated to the AEM
“MILOutput” feature. The AEM MILOutput activates if any one of the following inputs are in an error state:
air temp, baro pressure, coolant temp, exhaust back pressure, fuel pressure, UEGO #1, UEGO #2, MAF
analog, MAF digital, MAP, oil pressure, or throttle position. If any of these sensors are not used, they
should be turned OFF in the Wizard to avoid any false readings. To activate the MILOutput feature, go to
the Wizard and check “Enable MIL Output” in Diagnostics.

The AEM traction control utilizes the CAN wheel speed sensors: CAN_FLWS [MPH], CAN_FRWS
[MPH], CAN_RLWS [MPH], and CAN_RRWS [MPH]. The following steering channels are only for data
logging: CAN_STEERANGLE [deg], CAN_STEERRATE [deg/s], CAN_Brake_Pressure [bar], and
CAN_BrakeSwitch.

© 2014 AEM Performance Electronics

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P/N 30-3520

CRUISE CONTROL

Currently, a cruise control feature is not supported with the AEM Infinity. However, the
multi-functional steering wheel buttons are available for miscellaneous purposes
described below. There are 4 buttons: Accel/Res, Coast/Set, On/Off, and Cancel.

first be sure the 3StepSwitch table is set to recognize the “momentary” Enable button, as shown. Set
the 3StepTargetFuel and/or the 3StepTargetSpark table’s first (0 MPH) cell to the desired launch RPM.
When the Enable button is held down, the EMS will limit the engine’s corresponding RPM. Once the car
is launched and the EMS begins to register vehicle speed, the RPM limit can then be tailored to prevent
wheel spin using these tables.

The On/Off button
now engages the 3­step rev limiter
channel
“CC_Enable”. A 3­step rev limiter is a
simplified traction
control based
system that uses
engine and vehicle
speed or launch timer inputs to limit
the RPM of the engine. To operate,

The Cancel button is used
as an AEM traction control
switch. The latching
Cancel button changes the
TC_SlipTargetTrim 1-axis
lookup table (shown).
Simultaneously, the Cruise Control “Set” icon on the dash is illuminated to inform the driver the status of
the programmable AEM traction control. Normally this table is used with a multiple position switch.
However, because the Nissan On/Off button is either OFF (0) or ON (1), only the first two cells of the
table is used. Two possible traction scenarios, for example, could be ON/OFF or aggressive/
nonaggressive.

© 2014 AEM Performance Electronics

2003–2006 Nissan 350Z/Infiniti G35

9

The steering wheel’s Accel/Res button and Coast/
Set momentary buttons can increment and
decrement the map switching function
“ModeSwitch”. This feature is extremely flexible as
it can be used to switch VE tables, ignition maps,
lambda targets, and boost levels.

When the Accel/Res button or Coast/Set button is
depressed (or when KeyOn occurs) the tachometer
displays 1K, 2K, 3K, 4K, 5K, 6K, 7K, 8K (for
500mS) representing the currently selected value of
ModeSwitch. Because of the Nissan/Infiniti
tachometer range, 1–8 are the only valid values (9–
12 are not used for this application).

For safety precautions, the AEM base session files
come standard with the VE tables, ignition maps,
lambda targets, and boost tables all set the same
because the Accel/Res button or Coast/Set button
could be mistakenly bumped.

In order to use this feature, care must be taken into account when setting up the tables and tuning.
Simply enter the number of the table into the corresponding mode selection table for each feature (VE
tables, ignition maps, lambda targets, and boost levels).

© 2014 AEM Performance Electronics

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Lowside Setup:

The lowside outputs should be configured as follows for
proper VVC operation:
VVC1A = Lowside 3
VVC1B = Lowside 5
VVC2A = Lowside 6
VVC2B = Lowside 8
VVC 1 Frequency = 300 Hz
VVC 2 Frequency = 1000 Hz

P/N 30-3520

VARIABLE VALVE CONTROL (VVC)

The AEM Infinity system supports Nissan’s 2 cam variable valve timing equipped engines (VQ35DE) and
4 cam variable valve timing equipped engines (VQ35DE-RU). The base calibration is configured with base
VVC settings that may need adjustment.

VVC Enable

To the right is the “VVC” page of the setup wizard configured for a 4 cam VVC equipped engine
(VQ35DE-RU). Two cam VVC equipped engines will only use “VVC1A” and “VVC1B”.

VVC Cam Sync

Cam sync is similar to ignition sync on an engine. Before setting cam sync, be sure VVC cam
assignments are set properly. With all VVC channels disabled (VVC enable boxes unchecked), start the
engine. The intake cam(s) should be at a parked retard position and the exhaust cam(s) should be at a
parked advance position. These points will serve as 0 timing reference for the VVC system. Adjust cam
sync values now until each cam timing registers as close to “0” as possible. The provided VQ35DE-RU
values should only require minimal adjustment.

© 2014 AEM Performance Electronics

2003–2006 Nissan 350Z/Infiniti G35

VVC Tuning

Below are two Infinity Tuner tabs that illustrate VVC tunability. If the VVC system is not following its
target properly, adjustments to VVC base duty and/or the VVC PID gains may be required.

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© 2014 AEM Performance Electronics

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Carefully remove the passenger side
runner kick panel by firmly pulling upwards
to release it from the clips holding it in.

Remove the passenger foot-well kick
panel by removing the circled 10mm
plastic nut and firmly pulling the panel out
to release it from the clips.

P/N 30-3520

INFINITY EMS INSTALLATION

*Shown on a 2006 Nissan 350Z. Your installation may vary depending on year/model.

Step 1

Step 2

© 2014 AEM Performance Electronics