AEM 30-3508 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
NEVER BE USED UPON A PUBLIC ROAD OR HIGHWAY, UNLESS PERMITTED BY SPECIFIC REGULATORY
EXEMPTION. (VISIT THE “EMISSIONS” PAGE AT HTTP://WWW.SEMASAN.COM/EMISSIONS FOR STATE BY
STATE DETAILS.)

IT IS THE RESPONSIBILITY OF THE INSTALLER AND/OR USER OF THIS PRODUCT TO ENSURE THAT IT IS
USED IN COMPLIANCE WITH ALL APPLICABLE LAWS AND REGULATIONS. IF YOU HAVE PURCHASED
THIS PRODUCT IN ERROR, DO NOT INSTALL AND/OR USE IT. PLEASE CONTACT THE RETAILER FROM
WHOM YOU PURCHASED THE PRODUCT TO ARRANGE A RETURN FOR A FULL REFUND OR VISIT

AEMELECTRONICS.COM/PRODUCT-LEGAL-RESTRICTIONS FOR FURTHER INSTRUCTIONS.

Manual

P/N 30-3508

2000–2005 Honda S2000

Infinity-6 and Infinity-8h*

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!

*See next page for important information regarding the use of this harness with Infinity-8h

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: 10-3508

Document Build 8/25/2014

2

P/N 30-3508

OVERVIEW

The 30-3508 AEM Infinity Adapter Kit is designed for the 2000–2005 Honda S2000. These models include
all 2.0L (AP1) engines as well as the early 2.2L (AP2) engines with a cable driven throttle body. This is a
true standalone system that eliminates the use of the factory ECU. The use of this adapter makes the kit
“plug and play” so no cutting or splicing wires is necessary. The base configuration files available for the
Infinity EMS are starting points only and will need to be modified for every specific application.

The available AEM Infinity EMS part numbers for this adapter kit are:

30-7106 INFINITY-6
30-7108 INFINITY-8h

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. 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 2000–2005 Honda S2000

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

7106-XXXX-75 Infinity-6 (XXXX = serial number)
7108-XXXX-76 Infinity-8h (XXXX = serial number)

© 2014 AEM Performance Electronics

*IMPORTANT INFINITY-8H INFORMATION

Infinity
Pin

Infinity-6
Function

Infinity-8h
Function

30-3508
PnP Honda
Pin

Notes
C1-3

Lowside6

Injector7

A1

OEM Coolant Gauge on Infinity-6 or Injector7 on

Infinity-8h

C1-4

Lowside7

Injector8

A18

MIL on Infinity-6 or Injector8 on Infinity-8h

C1-31

Digital6

Coil7

Aux 6

Available Digital6 on Infinity-6; Coil7 not used on

Infinity-8h. ** Must de-pin for use with Infinity-8h;

Coil7 not used**

C1-32

Digital7

Coil8

A32

Brake Switch input on Infinity-6; Coil8 not used on

Infinity-8h. ** Must de-pin for use with Infinity-8h;

Coil8 not used**

The primary difference between the 30-7106 Infinity-6 and 30-7108 Infinity-8h is that the 8h lacks Peak
& Hold injector drivers to run low impedance fuel injectors. High impedance (saturated, high-z) fuel
injectors must be used with the Infinity-8h.

The Infinity-6 and Infinity-8h share a common pinout with the exception of four pins where the Infinity-8h
has two each additional fuel injector and ignition coil drivers. Due to the additional fuel injector and
ignition coil drivers, the 8h has two fewer digital inputs and lowside outputs. Use of this harness with an
Infinity-8h will require slight modification and will result in loss of some plug and play function- OEM
Coolant Gauge, Malfunction Indicator Light, and Brake Switch input.

2000–2005 Honda S2000

3

INFINITY CONNECTORS

The AEM Infinity EMS uses the MX123 Sealed Connection System
from Molex. Refer to the 10-7100 for EMS 30-7100 Infinity Quick
Start Guide for details on connector assembly and handling.

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

© 2014 AEM Performance Electronics

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P/N 30-3508

INFINITY ADAPTER HARNESS

Included with the 2000–2005 Honda S2000 kit is an adapter harness. This is used to make the
connection between the AEM Infinity EMS and the Honda wiring harness plug and play. This is depicted
below with the 80-pin connector and the Honda header. There are also a few other integrated connectors
within this harness described below.

The gray Deutsch 6P DTM “Lambda #1” connector is for connecting a UEGO wideband Bosch LSU4.2
sensor (AEM 30-2001). The UEGO extension harness (AEM 30-3600) mates the adapter harness to the
sensor.

The gray Deutsch 4P DTM connector is used for “AEMNet”. 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 black Delphi 2-pin “Flash Enable” connector is used for secondary hardware flashing. The included
shunt connector jumps the 2 wires together. Once initially flashed, the EMS is normally upgraded in the
software, not using this connector.

The gray Deutsch 12P DTM “Auxiliary” connector
(shown below) 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:
The pin numbering is molded into the connector, as
shown.

© 2014 AEM Performance Electronics

DASHBOARD

The AEM Infinity EMS for the 2000–2005 Honda S2000 drives the Tachometer, Coolant Temperature
Gauge, and the CEL (Check Engine Light). Shown below are the AP1 and AP2 gauge clusters.

Rather than OBD2 diagnostics, the CEL light is now dedicated to the AEM “MILOutput” feature. The
AEM MILOutput activates if any 1 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 coolant temp gauge is ECU
driven by a 5V 30ms pulse with a
period that varies with ECT
voltage, as shown. It is pre­calibrated using a combination of
the LS6_Freq [Hz] 1-axis table
and the LS6_Duty [%] 2-axis
table.

2000–2005 Honda S2000

5

Similarly, the Honda S2000 gauge
cluster’s tachometer is also driven by
the ECU, as shown. However, compared
to the coolant temperature gauge, this
signal is very elementary as it simply
varies frequency with engine speed.

The Honda S2000 tachometer is pre­calibrated using a combination of the
LS5_Freq [Hz] 1-axis table and the
LS5_Duty [%] 2-axis table.

© 2014 AEM Performance Electronics