Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
100%
Stock ECU being replaced
ECU power (+B2, main relay)
GND
ELITE2500-A-15 AVI 9 (MAP)
ELITE2500-B-7 SPI 4
ELITE2500-B-24 CAN L
ELITE2500-B-23 CAN H
ELITE2500-A-23 DPO 3
ELITE2500-B-13 AVI 1 (O2 Input 2)
ELITE2500-A-13 12V ignition input
0V sensor
OEM-A33
Stock ECU being replaced
1ECU power (+B2, main relay)
4Power ground (EC)
12Intake air temperature (THA, in MAF)
14Starter signal (STSW2)
18CAN low (CANL)
19CAN high (CANH)
20Blower relay (HB)
22Mass air flow (VG)
27Ignition switch sense (IGSW, IG2 relay)
29MAF sensor ground (E2G)
GND
GND
GND
ELITE2500-A-33 Stepper 1 P3 / DPO
ECU power (+B, main relay)
ELITE2500-B-2 Cam (Home) (+)
ELITE2500-B-10 SPI 3
ELITE2500-B-1 Crank (Trigger) (+)
ELITE2500-B-22 KNOCK 2
ELITE2500-A-16 AVI 2
ELITE2500-B-3 AVI 7 (Air Temp)
ELITE2500-B-9 SPI 2
ELITE2500-B-8 SPI 1
0V sensor
ELITE2500-B-21 KNOCK 1
5V ref
OEM-A34
Stock ECU being replaced
1Power ground (E03)
2Power ground (E04)
3Power ground (E05)
5A/F ratio sensor heater (HA1A)
6ECU power (+B, main relay)
14VVT cam sensor exhaust bank 1 (EV1+)
15VVT cam sensor intake bank 2 (VV2+)
16Crank position (NE+)
17Knock sensor 2 (KNK2)
20Manifold absolute pressure (PIM)
21Heated oxygen sensor (OX1B, rear)
25VVT cam sensor exhaust bank 2 (EV2+)
26VVT cam sensor intake bank 1 (VV1+)
27Crank position return (NE-)
28Knock sensor 1 (KNK1)
34OCV power source (VCV, 5V)
ELITE2500-A-31 Stepper 1 P1 / DPO
ELITE2500-A-32 Stepper 1 P2 / DPO
ELITE2500-A-1 DPO 2
ELITE2500-A-18 DPO 1
ELITE2500-A-25 DPO 6 (ECR OUT)
ELITE2500-B-19 DPO 4
5V ref
5V ref
ELITE2500-B-20 AVI 5
0V sensor
0V sensor
ELITE2500-A-17 AVI 3
ELITE2500-A-24 DPO 5 (fuel pump trigger)
OEM-A35
Stock ECU being replaced
5Injector relay (IREL)
7ETCS relay (+BM)
11Cooling fan relay 3 (FAN1)
12Cooling fan relay 2 (FAN2)
13EFI main relay 1 (SSHUT)
17ETCS relay (MCR)
21Accelerator pedal 5V supply (VCPA)
22Accelerator pedal 5V supply (VCP2)
23Accelerator pedal position (VPA)
29Accelerator pedal ground (EPA)
30Accelerator pedal ground (EPA2)
31Accelerator pedal position 2 (VPA2)
35A/C clutch relay (AC)
ELITE2500-B-25 DBW 1 / DPO
ELITE2500-B-26 DBW 2 / DPO
GND
GND
ELITE2500-A-34 Stepper 1 P4 / DPO
ELITE2500-A-6 IGN 4
ELITE2500-A-4 IGN 2
ELITE2500-A-19 INJ 1
ELITE2500-A-29 INJ 7
ELITE2500-A-20 INJ 2
ELITE2500-B-12 AVI 6 (O2 Input 1)
5V ref
ELITE2500-A-14 AVI 10 (TPS)
ELITE2500-A-3 IGN 1
ELITE2500-A-21 INJ 3
ELITE2500-A-30 INJ 8
ELITE2500-A-27 INJ 5
ELITE2500-A-22 INJ 4
ELITE2500-A-2 AVI 4
0V sensor
ELITE2500-B-4 AVI 8 (Coolant Temp)
ELITE2500-A-5 IGN 3
ELITE2500-A-28 INJ 6
OEM-A36
Stock ECU being replaced
1Throttle actuator motor - (M-)
2Throttle actuator motor + (M+)
3Power ground (E02)
4Power ground (E01)
6Heated oxygen sensor heater (HT1B)
8Ignition coil 4 (IGT4)
10Ignition coil 2 (IGT2)
12Injector 1 port (#10)
13Injector 4 port (#40)
14Injector 1 direct (#1)
18Throttle position (VTA1)
19Sensor 5V supply (VC)
20Oil temperature (OT)
21Ignition coil 1 (IGT1)
22Injector 2 port (#20)
23Injector 4 direct (#4)
24Injector 3 direct (#3)
25Injector 2 direct (#2)
28Throttle position 2 (VTA2)
29Sensor ground (E1)
30Engine coolant temperature (THW)
31Ignition coil 3 (IGT3)
32Injector 3 port (#30)
ELITE2500
ELITE2500-A
ELITE2500
1DPO 2
2AVI 4
3IGN 1
4IGN 2
5IGN 3
6IGN 4
9+5V DC
10Battery ground
11Battery ground
1312V ignition input
14AVI 10 (TPS)
15AVI 9 (MAP)
16AVI 2
17AVI 3
18DPO 1
19INJ 1
20INJ 2
21INJ 3
22INJ 4
23DPO 3
24DPO 5 (fuel pump trigger)
25DPO 6 (ECR OUT)
26ECU injector power input
27INJ 5
28INJ 6
29INJ 7
30INJ 8
31Stepper 1 P1 / DPO
32Stepper 1 P2 / DPO
33Stepper 1 P3 / DPO
34Stepper 1 P4 / DPO
OEM-A35-11 Cooling fan relay 3 (FAN1)
OEM-A36-28 Throttle position 2 (VTA2)
OEM-A36-21 Ignition coil 1 (IGT1)
OEM-A36-10 Ignition coil 2 (IGT2)
OEM-A36-31 Ignition coil 3 (IGT3)
OEM-A36-8 Ignition coil 4 (IGT4)
5V ref
GND
GND
OEM-A33-27 Ignition switch sense (IGSW, IG2 relay)
OEM-A36-20 Oil temperature (OT)
OEM-A33-12 Intake air temperature (THA, in MAF)
OEM-A34-20 Manifold absolute pressure (PIM)
OEM-A35-31 Accelerator pedal position 2 (VPA2)
OEM-A35-12 Cooling fan relay 2 (FAN2)
OEM-A36-12 Injector 1 port (#10)
OEM-A36-14 Injector 1 direct (#1)
OEM-A36-22 Injector 2 port (#20)
OEM-A36-25 Injector 2 direct (#2)
OEM-A33-20 Blower relay (HB)
OEM-A35-35 A/C clutch relay (AC)
OEM-A35-13 EFI main relay 1 (SSHUT)
ECU injector power input
OEM-A36-24 Injector 3 direct (#3)
OEM-A36-32 Injector 3 port (#30)
OEM-A36-13 Injector 4 port (#40)
OEM-A36-23 Injector 4 direct (#4)
OEM-A35-5 Injector relay (IREL)
OEM-A35-7 ETCS relay (+BM)
OEM-A34-5 A/F ratio sensor heater (HA1A)
OEM-A36-6 Heated oxygen sensor heater (HT1B)
ELITE2500-B
ELITE2500
1Crank (Trigger) (+)
2Cam (Home) (+)
3AVI 7 (Air Temp)
4AVI 8 (Coolant Temp)
5Crank (Trigger) (−)
6Cam (Home) (−)
7SPI 4
8SPI 1
9SPI 2
10SPI 3
11+13.8V ECU supply
12AVI 6 (O2 Input 1)
13AVI 1 (O2 Input 2)
14Signal ground
15Signal ground
16Signal ground
19DPO 4
20AVI 5
21KNOCK 1
22KNOCK 2
23CAN H
24CAN L
25DBW 1 / DPO
26DBW 2 / DPO
OEM-A34-16 Crank position (NE+)
OEM-A34-14 VVT cam sensor exhaust bank 1 (EV1+)
OEM-A34-21 Heated oxygen sensor (OX1B, rear)
OEM-A36-30 Engine coolant temperature (THW)
SP-0V · 5 pins
SP-0V · 5 pins
OEM-A33-14 Starter signal (STSW2)
OEM-A34-26 VVT cam sensor intake bank 1 (VV1+)
OEM-A34-25 VVT cam sensor exhaust bank 2 (EV2+)
OEM-A34-15 VVT cam sensor intake bank 2 (VV2+)
+13.8V ECU supply
OEM-A36-18 Throttle position (VTA1)
OEM-A33-22 Mass air flow (VG)
0V sensor
0V sensor
0V sensor
OEM-A35-17 ETCS relay (MCR)
OEM-A35-23 Accelerator pedal position (VPA)
OEM-A34-28 Knock sensor 1 (KNK1)
OEM-A34-17 Knock sensor 2 (KNK2)
OEM-A33-19 CAN high (CANH)
OEM-A33-18 CAN low (CANL)
OEM-A36-1 Throttle actuator motor - (M-)
OEM-A36-2 Throttle actuator motor + (M+)
SP-GND · 9 pins
SP-14V · 5 pins
SP-5V1 · 6 pins
SP-0V · 11 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
72 / 72 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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