AEM 30-6611 Series 2 Plug Play EMS Installation Instructions

Installation Instructions for:

EMS P/N 30-6611

Vehicle:

1996-1998 Nissan 240SX S14 KA24DE
1997-1999 Nissan Sentra B14 SR20DE & GA16DE (Except 97 2.0L)
1997-1998 Nissan 200SX B14 SR20DE & GA16DE (Except 97 2.0L)

1996-1999 Nissan Altima U13 KA24DE (Except 96 Non CA models)

1999 Infiniti G20 P10 SR20DE

WARNING:

This installation is not for the tuning novice nor the PC illiterate!
Use this system with EXTREME caution! The AEM EMS System
allows for total flexibility in engine tuning. Misuse of this
product can destroy your engine! If you are not well versed in

,!

This product is legal in California for racing vehicles only and should never be used

Note: Part number 30-6611 supersedes and replaces p/n 30-1611 and 30-1611U

1996-1998 Nissan 240SX S14 KA24DE (OBDII) 1611/U 6611

1997-1999 Nissan Sentra B14 SR20DE/GA16DE (x/c ‘97 2.0L) 1611/U 6611

1997-1998 200SX B14 SR20DE/GA16DE (x/c ‘97 2.0L) 1611/U 6611

1996-1999 Nissan Altima U13 KA24DE (x/c ’96 Non CA models) 1611/U 6611

engine dynamics and the tuning of management systems or are
not PC literate, please do not attempt the installation. Refer the
installation to a AEM trained tuning shop or call 800-423-0046
for technical assistance. You should also visit the AEM EMS
Tech Forum at http://forum.aempower.com/forum/index.php

NOTE: AEM holds no responsibility for any engine damage that
results from the misuse of this product!

on public highways.

Vehicle Series I EMS Series II EMS

1999 Infiniti G20 P10 SR20DE 1611/U 6611

© 2010 Advanced Engine Management, Inc.

ADVANCED ENGINE MANAGEMENT INC.

th

2205 126

Street Unit A Hawthorne, CA. 90250

Phone: [phone] Fax: [phone]

http://www.aempower.com

Instruction Part Number: 10-6611

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Thank you for purchasing an AEM Engine Management System.
The AEM Engine Management System (EMS) is the result of extensive development on a

wide variety of cars. Each system is engineered for your particular application. The AEM
EMS differs from all others in several ways. The EMS is a stand alone system, which
completely replaces the factory ECU and features unique Plug and Play Technology. This
means that each system is configured especially for your make and model of car without
any jumper harnesses. There is no need to modify your factory wiring harness and in most
cases your car may be returned to stock in a matter of minutes.

For stock and slightly modified vehicles, the supplied startup calibrations are configured to
work with OEM sensors, providing a solid starting point for beginner tuning. For more
heavily modified cars, the EMS can be reconfigured to utilize aftermarket sensors and has
many spare inputs and outputs allowing the elimination of add-on rev-limiters, boost
controllers, nitrous controllers, fuel computers, etc. It also includes a configurable onboard
1MB data logger that can record any 16 EMS parameters at up to 250 samples per
second. Every EMS comes with all functions installed and activated; there is no need to
purchase options or upgrades to unlock the full potential of your unit.

The installation of the AEM EMS on the supported vehicles uses the stock sensors and
actuators. After installing the AEMTuner software, the startup calibration will be saved to
the following folder on your PC:
C:\Program Files\AEM\AEMTuner\Calibrations\Nissan\

If your vehicle is not listed, it may have a calibration which can be found on AEM’s user
discussion forum: http://forum.aempower.com/forum/index.php
Multiple calibrations may be supplied for each EMS and additional details of the test
vehicle used to generate each calibration can be found in the Calibration Notes section for
that file.

We always post the most current strategy release, PC Software, and startup calibrations
on the forum where you can also find and share many helpful hints/tips to make your EMS
perform at its best.

TUNING NOTES AND WARNING:

While the supplied startup calibration may be a good starting point and can save
considerable time and money, it will not replace the need to tune the EMS for your specific
application. AEM startup calibrations are not intended to be driven aggressively before
tuning. We strongly recommend that every EMS be tuned by someone who is already
familiar with the AEM software and has successfully tuned vehicles using an AEM EMS.
Most people make mistakes as part of the learning process; be warned that using your
vehicle as a learning platform can damage your engine, your vehicle, and your EMS.

The function of several pins have been changed from the original 30-1611 EMS, please
see the pinout chart for more info.

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Read and understand these instructions BEFORE attempting to install this product.
**Cam / Crank Angle Sensor: AEM trigger disc MUST be used

Discrepancies have been observed in the OEM cam/crank angle signals between model
years and/or trim levels; to avoid confusion the Series 2 EMS does not support the OEM
Nissan trigger pattern. A replacement trigger disc is now included with every Nissan EMS
and must be installed before attempting to start the engine. An AEM trigger disc is
supplied with each 30-6611 EMS which fits KA, GA, and SR sensors. Please consult the
following instructions supplement, which will be installed to the C:\Program
Files\AEM\AEMTuner\Instructions folder:
‘10-6610-A for EMS - 30-661X supplement- CAS trigger install KA, GA and SR
engines.pdf’

Primary Load Sensor, EMS Fuel Strategy
The factory MAF (mass air flow) sensor(s) can be removed to help decrease intake air
restriction; the EMS can be configured to use a MAP sensor to determine engine load.
It is recommended to use a 3.5 bar MAP sensor or higher (P/N 30-2130-50).
The factory Mass Air Flow sensor can be used as the primary load input for the AEM EMS
if desired. Please check the Notes section of each calibration for more info about the
vehicle setup and fuel strategy that calibration was configured to use.

EMS Fuel Map, Boost Fuel Trim Table

The 30-6611 maps provided utilize the “Boost Fuel Trim Table” to provide a 1:1 fuel
compensation above atmospheric pressure. In the startup calibration, the “Boost Fuel Trim
Table” is configured to provide twice as much fuel when the manifold pressure is twice as
high; this should help simplify the tuning process for different boost levels. Notice the
values in the main “Fuel Map” do not change above 100 kPa (0 psi boost), the fuel
correction is being made by the “Boost Fuel Trim Table.”
Note: the “Boost Fuel Trim Table” must be adjusted if a different MAP sensor is installed or
if the Load breakpoints are adjusted. The Boost Fuel Trim value should be set to -90 at
10kPa, 0 at 100 kPa, +100 at 200 kPa, +200 at 300 kPa, etc…

Peak and Hold Injector Drivers

Injectors 1-4 include Peak (4 amps) and Hold (1 amp) injector drivers. These drivers may
be used with peak and hold or saturated type injectors. The factory Nissan wiring harness
may contain a resistor pack to prevent excessive current when using low-impedance
injectors with the stock ECU. With the 30-6611 installed, users can elect to remove and
bypass the OEM resistor pack for more precise control of low-impedance injectors.

Please note that the injector response time will be different with and without the factory
injector resistor pack. If the OEM resistor pack has been removed and bypassed, please
use the correct battery offset wizard for your injectors. Most battery offset wizards will
specify <P&H DRIVER> if they are intended for use without a resistor pack.

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Wiring accessories to the EMS:

Please follow this suggested wiring diagram when adding accessories such as UEGO
gauges, MAP sensors, IAT sensors, or switches for use with the EMS. Note that wire
polarity is not important for the Air Temperature sensor.

AEM UEGO

P/N: 30-5130

AEM EMS

P/N: 30-6611

O2 Sensor 1

46

Sensor Ground (tapped)

50

+5V Sensor Power (tapped)

49

MAP Signal

66

Sensor Ground (tapped)

50

IAT Sensor

63

Sensor Ground (tapped)

50

Switched Input

35

White (0-5V Analog + signal)

Brown (Analog - signal)

Red (+5V Sensor Power)

Green (MAP Signal)

Black (Sensor Ground)

Switch 1

Pink (Switched +12V Power)

Red (+12V power, 5A fuse)

Black (Battery or chassis ground)

MAP Sensor

P/N: 30-2130-50

Air Temperature Sensor

P/N: 30-2010

Ground

30-1611 (Series 1) vs 30-6611 (Series 2) EMS differences:

The EMS functions assigned to certain pins have been changed and no longer match the
30-1611 EMS. Unless otherwise noted, the following pins and functions will need to be
manually reconfigured after using AEMTuner to convert a V1.19 30-1611, Series 1 EMS
calibration for use with the 30-6611 Series 2 hardware.

Pin

12 A/C triple press sw --- CAN1L Changed to CAN low side
69 --- Coil #5 CAN1H Changed to CAN high side

Vehicle harness

destination

30-1611 function 30-6611 function Notes

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