AEM Series 2 Plug Play EMS 306601 User Manual

  
 
 
ADVANCED ENGINE MANAGEMENT INC. 
2205 126
th Street Unit A    Hawthorne, CA. 90250 
Phone: (310) 484-2322 Fax: (310) 484-0152 
http://www.aempower.com 
Instruction Part Number: 10-6601 
© 2010 Advanced Engine Management, Inc.   
 
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Installation Instructions for: 
EMS P/N 30-6601 
1991-1993 Silvia S13 SR20DET 
1991-1995 Nissan 180SX SR20DET 
 
WARNING: 
,! 
This installation is not for the t uning novice nor the PC illiterate! 
Use this system with 
EXTREME caution! The AEM EMS System...

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 enginee red for the 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, 
which means that each system is configured  especially for your make and model of car 
without any...

Read and understand these instructions BEFORE attempting to install this product.  
1)  Install AEMTuner software onto your PC  
The latest version of the AEMTuner so ftware can be downloaded from the AEMTuner 
section of the AEM Perform ance Electronics forums. Seri es 2 units are not supported 
by the older AEMPro tuning software.   
 
2)  Change Cam/Crank Angle Sensor: AEM trigger disc MUST be used   
On Nissans, discrepancies have been observed  in the OEM cam/crank angle signals 
between model...

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 t he Air Temperature sensor.   
+5V Sensor Power
Switched Input
41 Sensor Ground
IAT Sensor
29 26
AEM EMS 
P/N: 30-6600
Sensor Ground
MAP Signal
35
29 37 Sensor Ground O2 Sensor 1
19
29
Ground Switch 6
Air Temperature Sensor 
P/N: 30-2010
Black (Sensor Ground)Green (MAP Signal)
Red (+5V Sensor Power) Black...

c) Note: This calibration needs to be properly tuned before driving the vehicle. It is 
intended for racing vehicles and may not oper ate smoothly at idle or part-throttle. 
NEVER TUNE THE VEHICLE WHILE DRIVING 
 
7) Troubleshooting an engine that will not start 
a) Double-check all the basics first… engi nes need air, fuel, compression, and a 
correctly-timed spark event. If any of these  are lacking, we suggest checking simple 
things first. Depending on the symptoms, it may be best to inspect fuses,...

Application Notes for EMS P/N 30-6601 
1991-1993 Silvia S13 SR20DET,  1991-1995 180SX SR20DET  
 
Make: Nissan  Spare Injector Drivers: Inj 5, Pin 23 
Model: Silvia and 180SX  Spare Injector Drivers: Inj 6, Pin 105 
Years Covered: 1991-1995  Spare Injector Drivers: Inj 7, Pin 14 
Engine Displacement: 2.0L  Spare Injector Drivers: Inj 8, Pin 114 
Engine Configuration: Inline 4    
Firing Order: 1-3-4-2    
N/A, S/C or T/C: Turbocharged    
Load Sensor Type: 0-5V MAF  Boost Solenoid: PW 2, Pin 111 
   EGT...

Engine Wiring Harnesses, ‘swapped’ engine installations
Many Nissan wiring harnesses have been found  to contain significant differences between 
model years and/or trim levels. Likely diffe rences include: Crank signal, Cam signal, 
Ignition switch wiring (the Ignition switch input  controls the Main Relay output), injector and 
coil destinations. Official document ation for some vehicles was not offered in English, so it 
would be very wise to double-c heck the pinout destinations for these circuits....

Wiring accessories to the EMS: 
Please follow this suggested wiring diagram when adding accessories such as UEGO 
gauges, MAP sensors, IAT sensors, or switc hes for use with the EMS. Note that wire 
polarity is not important for t he Air Temperature sensor.   
 
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Connection Diagram for EMS P/N 30-6601 
PnP These pins are used in the AEM-supplied startup calibration. They can be reconfigured by the end user. 
Available Not used by the startup calibration. Modifications to the OEM wiring may be required before use. 
Dedicated The function of these pins is fixed and must not be changed. 
 
Pin  1991-1995 Nissan 180SX SR20DET,  1991-1993 Nissan Silvia S13 SR20DET AEM EMS 30-6601 I/O Notes 
1 Ignition 1 Coil 1 Output PnP for Coil 1,  0-5V Falling Edge trigger 
2...

Connection Diagram for EMS P/N 30-6601 
Pin  1991-1995 Nissan 180SX SR20DET,  1991-1993 Nissan Silvia S13 SR20DET AEM EMS 30-6601 I/O Notes 
15 Data Link Connector EGT 2 Input Available, jumper set for 0-5V Input 
16 Mass Air Flow Sensor MAF Input PnP for MAF Sensor 
17 Mass Air Flow Ground Power Ground Input Dedicated 
18 ECT Sensor Coolant Input PnP for Coolant Temp Sensor 
19 Oxygen Sensor O2 #1 Input Dedicated, 0-5V input signal 
20 Throttle Position Sensor TPS Input PnP for Throttle Position Sensor...