Nissan - 300 ZX - Wiring Diagram - 1990 - 1995
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if they are intended for use without a resistor pack. 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. Connection Diagram for EMS P/N 30-6620 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 location of these pins is fixed and must not be changed. Pin ‘89-‘98 Nissan Skyline RB26DETT, ‘93-‘98 Nissan Skyline RB25DET, ‘89-‘94 Nissan Skyline RB20DET 1990-1995 Nissan 300ZX VG30DE, VG30DETT, 19921994 Nissan Maxima VE30DE ‘94-‘96 Nissan Silvia S14 SR20DET, ‘88-‘91 Nissan Silvia S13 CA18DET, ‘89-‘93 Nissan 180SX CA18DET 1 Ignition 1 Ignition 1 Ignition 1 2 Ignition 5 Ignition 2 Ignition 2 3 Ignition 3 Ignition 3 Ignition 3 (CA18DET only) 4 AAC Valve --- 5 A/T Control Unit ← ← Wastegate Solenoid (JDM CA18 only) 6 Cooling Fan Relay (RB26DETT only) Cooling Fan Sub Relay (300ZX Turbo Only) 7 Tachometer ← ← Low Side 7 8 --- AIV Solenoid (90-92 300ZX), Power Solenoid (Maxima) Variable Butterfly Solenoid (JDM CA18DET only) Low Side 12 9 Air Conditioner Relay 10 ECM Ground ← ← ← ← Coil 6 Air Conditioner Relay (CA18DET only) 11 Ignition 6 Ignition 4 Ignition 3 (SR20DET only) Ignition 4 (CA18DET only) 12 Ignition 2 Ignition 5 Ignition 4 (SR20DET only) 13 Ignition 4 Ignition 6 --- 14 A/T Control Unit 15 A/T Control Unit 16 ECCS Relay control, Ignition Relay control ← ← ← ← ← ← 17 --- Data Link Connector AEM EMS 30-6620 I/O Notes Coil 1 Output PnP for Coil 1, 0-5V rising edge trigger Coil 5 Output PnP for Coil 5, 0-5V rising edge trigger Coil 3 Output PnP for Coil 3, 0-5V rising edge trigger PW 1 Output PnP for Idle Air Control, connects to Pin 106 PW 2 Output PnP for Boost control, connects to Pin 25 Low Side 5 Output Output Output PnP for Cooling Fan (CA18DET only: PnP for AC) PnP for Tachometer, internal pull-up resistor to 12V Available, switched Ground, 1.5A max Low Side 6 Output PnP for A/C Compressor Power Ground Input Dedicated Output PnP for Coil 6, 0-5V rising edge trigger Coil 2 Output PnP for Coil 2, 0-5V rising edge trigger Coil 4 Output PnP for Coil 4, 0-5V rising edge trigger Idle 5 Output Avail, switched Ground / +12V, 1.5A Max Idle 6 Main Relay (control) Output Avail, switched +12V / Ground, 1.5A Max Output Dedicated, EMS activates relay with switched GND Data Link Connector Injector 7 Output Avail, Switched Ground, 1.5A max 18 Fuel Pump Relay Control Signal ← ← Low Side 1 Output PnP for Fuel Pump 19 Power Steering Oil Pressure Switch Cooling Fan Relay Cooling Fan Relay (SR20DET only) Low Side 3 Output PnP for Cooling Fan 20 ECM Ground ← ← Power Ground Input Dedicated Wire View of AEM EMS Connection Diagram for EMS P/N 30-6620 Pin ‘89-‘98 Nissan Skyline RB26DETT, ‘93-‘98 Nissan Skyline RB25DET, ‘89-‘94 Nissan Skyline RB20DET 1990-1995 Nissan 300ZX VG30DE, VG30DETT, 19921994 Nissan Maxima VE30DE ‘94-‘96 Nissan Silvia S14 SR20DET, ‘88-‘91 Nissan Silvia S13 CA18DET, ‘89-‘93 Nissan 180SX CA18DET AEM EMS 30-6620 21 Diagnostics Receive Data Input Available, jumper set for 0-5V Input Diagnostics Transmit Data ← ← EGT 2 22 ← ← Switch 3 Input Available, switch must connect to ground 23 Knock Sensor (Cylinders 1-3) Knock Sensor Knock Sensor Knock 1 Input Available, software knock filter Knock 2 Input Available, software knock filter 24 Knock Sensor (Cylinders 4-6) --- --- 25 Wastegate Valve Control Solenoid Signal Wastegate Solenoids (300ZX TT Only) Wastegate Solenoid (SR20DET only) 26 Mass Air Flow Sensor Ground ← ← 27 Rear Mass Air Flow Sensor (RB26DETT) Mass Air Flow Sensor Mass Air Flow Sensor 28 Engine Coolant Temperature Sensor ← ← 29 Front Heated Oxygen Sensor Signal Right Side Heated Oxygen Sensor Heated Oxygen Sensor Signal 30 Sensor Ground 31 Diagnostics Clock 32 Malfunction Indicator Lamp ← ← ← ← ← ← Output Notes PnP for Boost control, connects to Pin 5 Power Ground Input Dedicated MAF Input PnP for MAF Sensor Coolant Input PnP for Engine Coolant Temp Input Dedicated, 0-5V signal O2 #1 Sensor Ground EGT 3 Low Side Driver 10 Output Input Output Dedicated Available, jumper set for 0-5V Input Avail, Switched Ground, 1.5A Max 36 Exhaust Temperature Light (RB25DET Only) Front Mass Air Flow Ground (RB26DETT) Front Mass Air Flow Signal (RB26DETT) IAT Sensor (RB26) / FICD solenoid (RB25) 37 --- --- ADCR14 Input 38 Throttle Position Sensor ← ← TPS Input PnP for Throttle Position signal 39 --- EGR Temperature Sensor --- EGT 1 Input Available, jumper set for 0-5V Input 40 --- --- --- CAN1H --- Dedicated 33 34 35 FICD Solenoid (300ZX Only) Power Steering Oil Press sw Fuel Pump Voltage Control (300ZX Turbo Only) Fuel Temperature Sensor (300ZX Only) Cooling Fan Hi Speed (SR20DET) / Diagnostics (CA18DET) Power Steering Oil Press sw (SR20DET Only) Boost Pressure Sensor (SR20DET Only) PW 2 I/O --Mass Air Flow Pin D (CA18DET-Non Catalytic Model Only) Injector 8 Output PnP for Cooling Fan Switch 2 Input Available, switch must connect to ground MAP Input Available, use this pin for Speed Density conversion AIT Input Avail, Air Temperature, 2.2kΩ pull-up resistor Avail, 0-5 Volt Input Wire View of AEM EMS Connection Diagram for EMS P/N 30-6620 1990-1995 Nissan 300ZX VG30DE, VG30DETT, 19921994 Nissan Maxima VE30DE ‘94-‘96 Nissan Silvia S14 SR20DET, ‘88-‘91 Nissan Silvia S13 CA18DET, ‘89-‘93 Nissan 180SX CA18DET AEM EMS 30-6620 I/O 41 ‘89-‘98 Nissan Skyline RB26DETT, ‘93-‘98 Nissan Skyline RB25DET, ‘89-‘94 Nissan Skyline RB20DET Camshaft Position Sensor Reference Signal ← ← Cam Signal Input 42 Camshaft Position Sensor Signal ← ← Input 43 Ignition Switch (start position) Dedicated 44 ← ← Input Neutral Position Switch ← ← Crank Signal +12V starting power Notes Dedicated, must use AEM replacement trigger disc (connects to pin 51) Dedicated, must use AEM replacement trigger disc (connects to pin 52) Input Available, switch must connect to ground ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← ← Switch 4 Main relay (input) Input Dedicated, +12V activates Main Relay circuit Switch 6 Input PnP for A/C request switch EGT 4 Input Available, jumper set for 0-5V Input +5V Sensor +12V Switched Output Dedicated Input Dedicated, +12V power when ECCS Relay is on Power Ground Input Cam Signal Input Dedicated Dedicated, must use AEM replacement trigger disc (connects to pin 41) Crank Signal T3 (Vehicle Speed) Input Dedicated, connects to Pin 42 Input PnP for Vehicle Speed Sensor Switch 1 Input Available, switch must connect to ground O2 #2 Input Dedicated, 0-5V signal Dedicated, for use with GT-R auxiliary devices (Attesa AWD control, Dashboard display) Pin 45 Ignition Switch 46 Air Conditioner Switch 47 Diagnostics Check Signal 48 +5V Sensor reference power 49 Power Supply For ECM 50 ECM Ground 51 Camshaft Position Reference Signal 52 Camshaft Position Sensor Signal 53 Vehicle Speed Sensor Signal 54 Idle Position Switch 55 Rear Heated Oxygen Sensor (RB26DETT) Left Side Heated Oxygen Sensor Throttle Sensor Output Signal (Auto Trans only) A/C FICD (CA18DET Only) 56 Throttle Sensor Output Signal 57 Power source for Idle Position switch ← Throttle Sensor Output Signal (Auto Trans only) Power for Idle Position switch (CA18DET) 58 Power Supply Back-Up ← ← 59 Power Supply for ECM 60 ECM Ground ← ← ← ← TPS Out CAN1L Permanent +12V +12V Switched Power Ground Wire View of AEM EMS Output Output Dedicated Input Dedicated, backup power for internal datalog Input Dedicated, +12V power when ECCS Relay is on Input Dedicated Connection Diagram for EMS P/N 30-6620 Pin ‘89-‘98 Nissan Skyline RB26DETT, ‘93-‘98 Nissan Skyline RB25DET, ‘89-‘94 Nissan Skyline RB20DET 1990-1995 Nissan 300ZX VG30DE, VG30DETT, 19921994 Nissan Maxima VE30DE ‘94-‘96 Nissan Silvia S14 SR20DET, ‘88-‘91 Nissan Silvia S13 CA18DET, ‘89-‘93 Nissan 180SX CA18DET 101 Injector 1 Injector 1 Injector 1 102 --- EGR Control Solenoid Valve EGR Control Solenoid Valve (SR20DET only) Injector 12 103 Injector 3 Injector 3 Injector 3 Injector 3 Output PnP for Injector 3 (Peak & Hold 4A/1A driver) 104 Fuel Pump Voltage Control ← --- ADCR11 Input Available, 0-5 Volt Input 105 Injector 2 Injector 5 --- Injector 2 Output PnP for Injector 2 (Peak & Hold 4A/1A driver) 106 Fuel Pump Voltage Control-2 (RB26DETT) --- AAC Solenoid Valve 107 ECM Ground 108 ECM Ground ← ← ← ← 109 Back Electromotive Current Feedback Circuit Power Supply For ECM Power (CA18) / Back-Up Power (SR20) 110 Injector 5 Injector 2 Injector 2 111 --- PRVR Control Solenoid Valve PRVR Control Solenoid Valve (CA18) 112 Injector 6 (RB20: Inj 4) Injector 4 Injector 4 113 VTC Solenoid Valve (RB25DET) VTC Solenoid Valves VTC Solenoid Valve (SR20DET only) 114 Injector 4 (RB20: Inj 6) Injector 6 --- 115 Oxygen Sensor Heater Control Signal 116 ECM Ground ← ← ← ← AEM EMS 30-6620 I/O Notes Injector 1 Output PnP for Injector 1 (Peak & Hold 4A/1A driver) PW 1 Output Output Avail, Switched Ground, 1.5A max (not Peak&Hold) PnP for Idle Air Control, connects to Pin 4 Power Ground Input Dedicated Power Ground Input Dedicated --- --- Not Used Injector 5 Output PnP for Injector 5 (Peak & Hold 4A/1A driver) Injector 9 Output Avail, Switched Ground, 1.5A max (not Peak&Hold) Injector 6 Output PnP for Injector 6 (Peak & Hold 4A/1A driver) Injector 11 Output Avail, Switched Ground, 1.5A max (not Peak&Hold) Injector 4 Output PnP for Injector 4 (Peak & Hold 4A/1A driver) Injector 10 Power Ground Wire View of AEM EMS Output Input Avail, Switched Ground, 1.5A max (not Peak&Hold) Dedicated 30-1620 (Series 1) vs 30-6620 (Series 2) EMS differences: The EMS functions assigned to certain pins have been changed and no longer match the 30-1620 EMS. Unless otherwise noted, the following pins and functions will need to be manually reconfigured after using AEMTuner to convert a V1.19 (30-1620, Series 1 EMS) calibration for use with the 30-6620 Series 2 hardware. Pin ‘89-‘98 Nissan Skyline RB26DETT, ‘93-‘98 Nissan Skyline RB25DET, ‘89-‘94 Nissan Skyline RB20DET 1990-1995 Nissan 300ZX VG30DE, VG30DETT, 19921994 Nissan Maxima VE30DE ‘93-‘96 Nissan Silvia S14 SR20DET, ‘88-‘91 Nissan Silvia S13 CA18DET, ‘89-‘93 Nissan 180SX CA18DET Ignition 5 Ignition 2 Ignition 2 8 --- AIV Solenoid (90-92 300ZX), Power Solenoid (Maxima) 11 Ignition 6 Ignition 4 Variable Butterfly Solenoid (JDM CA18DET only) Ignition 3 (SR20DET only) Ignition 4 (CA18DET only) 13 18 40 Ignition 4 Ignition 6 --- Fuel Pump Relay Control Signal ← ← --- --- --- 56 Throttle Sensor Output Signal Throttle Sensor Output Signal (Auto Trans only) 57 Power source for Idle Position switch ← 102 113 --- EGR Control Solenoid Valve Throttle Sensor Output Signal (Auto Trans only) Power for Idle Position switch (CA18DET) EGR Control Solenoid Valve (SR20DET only) VTC Solenoid Valve (RB25DET) VTC Solenoid Valves 2 VTC Solenoid Valve (SR20DET only) 30-1620 function 30-6620 function Notes Coil outputs reallocated for sequential ignition, Coil2 no longer wasted spark Coil 5 moved to pin 2 Coil #2 Coil 5 Coil #5 LS 12 Coil #1 Coil 6 Coil #3 LS #11 Coil #4 Coil 4 LS 1 CAN1H HS #1 TPS Out HS 1 no longer available Idle #8 CAN1L Idle 8 not available Idle #7 LS #08 INJ 12 INJ 11 Copy settings from Idle 7 to INJ12 Coil outputs reallocated for sequential ignition, Coil1 no longer wasted spark Coil outputs reallocated for sequential ignition, Coil3 no longer wasted spark LS 11 no longer available Coil 4 moved to pin 13 Copy settings from LS 8 to INJ11 AEM Electronics Warranty Advanced Engine Management Inc. warrants to the consumer that all AEM Electronics products will be free from defects in material and workmanship for a period of twelve months from date of the original purchase. Products that fail within this 12-month warranty period will be repaired or replaced when determined by 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. Warranty claims to AEM must be transportation prepaid and accompanied with dated proof of purchase. This warranty applies only to the original purchaser of product and is non-transferable. All implied warranties shall be limited in duration to the said 12-month warranty period. Improper use or installation, accident, abuse, unauthorized repairs or alterations voids this warranty. AEM disclaims any liability for consequential damages due to breach of any written or implied warranty on all products manufactured by AEM. Warranty returns will only be accepted by AEM when accompanied by a valid Return Merchandise Authorization (RMA) number. Product must be received by AEM within 30 days of the date the RMA is issued. Please note that before AEM can issue an RMA for any electronic product, it is first necessary for the installer or end user to contact the tech line at 1-800-423-0046 to discuss the problem. Most issues can be resolved over the phone. Under no circumstances should a system be returned or a RMA requested before the above process transpires. AEM will not be responsible for electronic products that are installed incorrectly, installed in a non approved application, misused, or tampered with. Any AEM electronics product can be returned for repair if it is out of the warranty period. There is a minimum charge of $75.00 for inspection and diagnosis of AEM electronic parts. Parts used in the repair of AEM electronic components will be extra. AEM will provide an estimate of repairs and receive written or electronic authorization before repairs are made to the product. 2010 ADVANCED ENGINE MANAGEMENT INC. 2205 126th Street Unit A Hawthorne, CA. 90250 Phone: (310) 484-2322 Fax: (310) 484-0152 http://www.aempower.com Instruction Part Number: 10-6620 Page 14 of 14