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Instruction
Manual
1993–1998 Toyota Supra MKIV Twin Turbo
Plug & Play Adapter Harness
THIS PRODUCT HAS LEGAL RESTRICTIONS.
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
WWW.SEMASAN.COM/EMISSIONS
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 THIS PRODUCT WAS PURCHASED IN ERROR, DO NOT INSTALL AND/OR USE IT. THE
PURCHASER MUST ARRANGE TO RETURN THE PRODUCT FOR A FULL REFUND.
THIS POLICY ONLY APPLIES TO INSTALLERS AND/OR USERS WHO ARE LOCATED IN THE UNITED STATES; HOWEVER CUSTOMERS
WHO RESIDE IN OTHER COUNTRIES SHOULD ACT IN ACCORDANCE WITH THEIR LOCAL LAWS AND REGULATIONS.
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
P/N 30-3500
Manual Transmission
STOP!
READ THIS BEFORE INSTALLING/USING!
FOR STATE BY STATE DETAILS.)
AEM Performance Electronics
Phone: (310) 484-2322 Fax: (310) 484-0152
http://www.aemelectronics.com
Instruction Part Number: 10-3500
Document Build 4/2/2015
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Summary of Contents for AEM 30-3500
- Page 1 WHO RESIDE IN OTHER COUNTRIES SHOULD ACT IN ACCORDANCE WITH THEIR LOCAL LAWS AND REGULATIONS. 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.
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Page 2: Getting Started
P/N 30-3500 OVERVIEW The 30-3500 AEM Infinity Adapter Kit is designed for the 1993–1998 Toyota Supra MKIV Twin Turbo (manual transmission). 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. - Page 3 Included with the 1993–1998 Toyota Supra MKIV Twin Turbo kit is an adapter harness. This is used to make the connection between the AEM Infinity EMS and the Toyota wiring harness plug and play. This is depicted below with the 73-pin and 56-pin connectors and the Toyota header. There are also a few other integrated connectors.
- Page 4 ECU SETUP WIZARD Important Application Specific Settings Engine In the Wizard Engine tab confirm the following: Number of Cylinders Engine Cycle Type = 4 Stroke Ignition Type = Sequential (Coil On Plug) Firing Order = 1-5-3-6-2-4 © 2015 AEM Performance Electronics...
- Page 5 Go to Setup Wizard Idle page and confirm the following: Idle Stepper Max Steps = 132 AC Input Switch Go to Setup Wizard Input Function Assignment page and confirm the following: AC Input Switch Setup = Analog17[V] © 2015 AEM Performance Electronics...
- Page 6 *This info does not apply to vehicles that utilize IACV solenoids. The 2 center pins (Black-Red wires) supply 12V power to the stepper motor in the factory setup, however these pins MUST BE DISCONNECTED before powering the AEM Infinity ECU. © 2015 AEM Performance Electronics...
- Page 7 Step 1: Disconnect connector from IACV housing and gently remove the retainer from the connector. Step 2: Use a small flat-blade screwdriver/pick to move the terminal locks while pulling the Black-Red wires out from the backside of the connector. © 2015 AEM Performance Electronics...
- Page 8 P/N 30-3500 Step 3: Use heat shrink to insulate both 12V wires, and then zip-tie the insulated wires to a nearby loom. Step 4: Reinstall the retainer, and then plug the connector back into the IACV. © 2015 AEM Performance Electronics...
- Page 9 The 1993–1998 Toyota Supra Infinity patch harness requires a harness relay and fuel pump control to be wired exactly as pictured below. Failure to do so may result in an unresponsive ECU and/or a no-start condition. © 2015 AEM Performance Electronics...
- Page 10 P/N 30-3500 ECU COVER MODIFICATIONS It is recommend that the OEM ECU cover panel be modified and reinstalled with the AEM Infinity EMS when utilizing the mounting bracket. Failure to properly clearance and reinstall this panel (Toyota PN#55199-14020) could potentially result in damage to the ECU, adapter harness, ECU connectors and/ or USB cables and connectors.
- Page 11 INFINITY EMS INSTALLATION Step 1 Disconnect battery's negative cable. Step 2 Locate factory Engine Control Unit (ECU). Most ECU's are located in the passenger kick panel, behind the center console, or in the engine bay. © 2015 AEM Performance Electronics...
- Page 12 P/N 30-3500 Step 3 Unplug factory harness plugs at ECU and remove factory ECU. © 2015 AEM Performance Electronics...
- Page 13 1993–1998 Toyota Supra MKIV Twin Turbo Step 4 Plug factory harness plugs into AEM Infinity Adapter Harness. © 2015 AEM Performance Electronics...
- Page 14 P/N 30-3500 Step 5 Mount the Infinity ECU and connect Infinity connectors and USB cables. Step 6 Run the USB cables to an easily accessible location. Step 7 Reconnect the battery's negative cable. © 2015 AEM Performance Electronics...
- Page 15 Inf inity Tuner. If connection errors occur during update, C1-9 Flash_Enable Flash Enable 10K pulldown connect 12 v olts to this pin bef ore proceeding with upgrade. Disconnect the 12 v olts signal af ter the update. © 2015 AEM Performance Electronics...
- Page 16 Inductiv e C1-18 LowsideSwitch_3 MIL Output ErrorCoolantTemp, ErrorEBP, load should NOT hav e f ull time ErrorFuelPressure, UEGO_0_Diag_error, power. UEGO_1_Diag_error, ErrorMAFAnalog, ErrorMAFDigital, ErrorMAP, ErrorOilPressure, ErrorThrottle. C1-19 AGND_1 Sensor Ground Dedicated analog ground Analog 0–5V sensor ground © 2015 AEM Performance Electronics...
- Page 17 Connect directly to battery ground. Recommend twisted pair (one twist per 2") Dedicated High Speed CAN C1-31 CANL_Aout AEMNet CANL with terminating resistor. Contact AEM f or Transceiv er additional inf ormation. Recommend twisted pair (one twist per 2") Dedicated High Speed CAN C1-32...
- Page 18 12 bit A/D, 100K pullup to 5V See the 1D lookup table 'ModeSwitch' f or 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 f or details.
- Page 19 DBW1 Motor + +12V to open Open Hbridge Driv e C1-55 Power Ground Ground Power Ground Connect directly to battery ground. Saturated or peak and hold, 3A C1-56 Injector 6 Injector 6 Injector 6 max continuous © 2015 AEM Performance Electronics...
- Page 20 C1-72 Stepper_1B Stepper 1B Stepper Driv er, up to 28V and 1A/1B and 2A/2B ECU outputs. Supports ±1.4A Bi-Polar stepper motors only . C1-73 Power Ground Ground Power Ground Connect directly to battery ground. © 2015 AEM Performance Electronics...
- Page 21 +12V as this can permanently damage the ECU. See ChargeOutTemp [C] table f or Charge Out C2-15 Analog_In_Temp_4 12 bit A/D, 2.49K pullup to 5V calibration data and ChargeOutTemp [C] Temperature f or channel data. © 2015 AEM Performance Electronics...
- Page 22 12 bit A/D, 100K pullup to 5V / Sensitiv ity 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. 0–5V analog signal. Use +5V Out pins as power supply and Sensor Ground pins as the low ref erence.
- Page 23 See ClutchSwitch 1-axis table f or setup options. Input can be assigned to dif f erent No pullup. Will work with TTL C2-38 Digital_In_7 Clutch Switch pins. See Setup Wizard page Input signals. Function Assignments f or input mapping options. © 2015 AEM Performance Electronics...
- Page 24 0–5V f alling edge f ire. DO NOT connect directly to coil primary . Must use an ignitor C2-52 Coil 8 Coil 8 25 mA max source current OR CDI that accepts a FALLING edge f ire signal. © 2015 AEM Performance Electronics...
- Page 25 Connector C1-37, Analog_In_9, Fuel Pressure C2-32, AGND_2, Sensor Ground +5V_Out_1, 5 Volt Sensor Power C1-26, Digital_In_5, Flex Fuel C1-40, Analog_In_12, Mode Switch Toyota Pin Numbering 1993–1998 Toyota Supra ECU Connectors View ed from Wire Side © 2015 AEM Performance Electronics...
- Page 26 P/N 30-3500 Infinity Pin Numbering AEM Infinity Connectors View ed from Wire Side © 2015 AEM Performance Electronics...
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Page 27: 12 Month Limited Warranty
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.
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