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
SHADOW8-B-21 Digital input 10 / ignition switch
SHADOW8-B-18 Digital input 7
SHADOW8-A-10 Analog voltage 1
SHADOW8-A-11 Analog voltage 2
SHADOW8-A-13 Analog voltage 4
SHADOW8-A-20 Analog voltage 8 (switchable 1k pull-up)
SHADOW8-A-29 Digital input 4
5V ref
EFI main relay (B+)
EFI main relay (B1+)
SHADOW8-A-31 Digital input 6
SHADOW8-A-19 Analog voltage 7 (switchable 1k pull-up)
SHADOW8-A-12 Analog voltage 3
0V sensor
SHADOW8-A-28 Digital input 3
SHADOW8-A-30 Digital input 5
GND
OEM-A
Stock ECU being replaced
1Ignition switch (IGSW)
2Starter signal (STA)
4Throttle position (VTA1)
5Coolant temperature (THW)
6O2 left front (OXL1)
7EGR temperature sensor
9Diagnostic test 1 (TE1)
11Sensor supply +5V (VC)
12EFI main relay (B+)
13EFI main relay (B1+)
14Neutral start switch (NSW)
16Intake air temperature (THA)
17O2 right front (OXR1)
18Sensor ground (E2)
19Vehicle speed (SPD)
20Diagnostic test 2 (TE2)
22Power ground (E1)
SHADOW8-B-10 Aux output 1
SHADOW8-B-8 Injector cylinder 7
SHADOW8-B-11 Aux output 2
SHADOW8-B-12 Aux output 3
SHADOW8-B-9 Injector cylinder 8
SHADOW8-A-14 Analog voltage 5
SHADOW8-B-19 Digital input 8
SHADOW8-B-20 Digital input 9
SHADOW8-A-21 Analog voltage 9 (switchable 1k pull-up)
SHADOW8-A-18 Analog voltage 6
Battery constant (BATT)
OEM-B
Stock ECU being replaced
4EFI main relay control (MREL)
5Check-engine lamp (W)
6Fuel pump relay (FPR)
7A/C clutch relay (ACMG)
8Fuel pump control (FC)
11O2 right rear (OXR2)
19Stop light switch (BK)
20A/T kickdown switch (KD)
23A/C request (AC)
24O2 left rear (OXL2)
26Battery constant (BATT)
SHADOW8-A-22 Analog voltage 10 (switchable 1k pull-up)
SHADOW8-A-26 Digital input 1
SHADOW8-A-16 Knock 1 +
SHADOW8-B-27 Ignition TTL cylinder 1
SHADOW8-A-6 Sync position sensor
SHADOW8-A-5 Crank position sensor
SHADOW8-A-27 Digital input 2
SHADOW8-A-24 Knock 2 +
SHADOW8-B-28 Ignition TTL cylinder 2
0V sensor
0V sensor
OEM-C
Stock ECU being replaced
1TPS idle switch (IDL)
2Igniter 1 feedback (IGF1)
3Knock sensor 1 (KNK1)
5Ignition 1 (IGT1)
7Cam sensor 1 + (G1+)
8Crank sensor + (NE+)
10Igniter 2 feedback (IGF2)
11Knock sensor 2 (KNK2)
13Ignition 2 (IGT2)
15Cam sensor ground (G-)
16Crank sensor - (NE-)
SHADOW8-B-7 Injector cylinder 6
SHADOW8-B-6 Injector cylinder 5
SHADOW8-B-17 Aux output 8
SHADOW8-B-16 Aux output 7
SHADOW8-B-3 Injector cylinder 2
SHADOW8-B-2 Injector cylinder 1
GND
SHADOW8-B-15 Aux output 6
SHADOW8-B-13 Aux output 4
SHADOW8-B-14 Aux output 5
SHADOW8-B-4 Injector cylinder 3
SHADOW8-B-5 Injector cylinder 4
GND
OEM-D
Stock ECU being replaced
5ISC stepper coil 4 (ISC4)
6ISC stepper coil 3 (ISC3)
7ISC stepper coil 2 (ISC2)
8ISC stepper coil 1 (ISC1)
11Injector 2&8 (#20)
12Injector 1&7 (#10)
13Power ground (E01)
17Cold start injector 1 (STJ1)
19O2 heater 2 (HT2)
20O2 heater 1 (HT1)
24Injector 3&5 (#40)
25Injector 4&6 (#30)
26Power ground (E02)
SHADOW8
SHADOW8-A
SHADOW8
1ECU supply
35.0V sensor supply
40V analog reference
5Crank position sensor
6Sync position sensor
7Trigger ground
9Ground 1
10Analog voltage 1
11Analog voltage 2
12Analog voltage 3
13Analog voltage 4
14Analog voltage 5
16Knock 1 +
18Analog voltage 6
19Analog voltage 7 (switchable 1k pull-up)
20Analog voltage 8 (switchable 1k pull-up)
21Analog voltage 9 (switchable 1k pull-up)
22Analog voltage 10 (switchable 1k pull-up)
24Knock 2 +
26Digital input 1
27Digital input 2
28Digital input 3
29Digital input 4
30Digital input 5
31Digital input 6
34Ground 2
ECU supply
5V ref
0V sensor
OEM-C-8 Crank sensor + (NE+)
OEM-C-7 Cam sensor 1 + (G1+)
0V sensor
GND
OEM-A-4 Throttle position (VTA1)
OEM-A-5 Coolant temperature (THW)
OEM-A-17 O2 right front (OXR1)
OEM-A-6 O2 left front (OXL1)
OEM-B-11 O2 right rear (OXR2)
OEM-C-3 Knock sensor 1 (KNK1)
OEM-B-24 O2 left rear (OXL2)
OEM-A-16 Intake air temperature (THA)
OEM-A-7 EGR temperature sensor
OEM-B-23 A/C request (AC)
OEM-C-1 TPS idle switch (IDL)
OEM-C-11 Knock sensor 2 (KNK2)
OEM-C-2 Igniter 1 feedback (IGF1)
OEM-C-10 Igniter 2 feedback (IGF2)
OEM-A-19 Vehicle speed (SPD)
OEM-A-9 Diagnostic test 1 (TE1)
OEM-A-20 Diagnostic test 2 (TE2)
OEM-A-14 Neutral start switch (NSW)
GND
SHADOW8-B
SHADOW8
1Battery constant (HOT) supply
2Injector cylinder 1
3Injector cylinder 2
4Injector cylinder 3
5Injector cylinder 4
6Injector cylinder 5
7Injector cylinder 6
8Injector cylinder 7
9Injector cylinder 8
10Aux output 1
11Aux output 2
12Aux output 3
13Aux output 4
14Aux output 5
15Aux output 6
16Aux output 7
17Aux output 8
18Digital input 7
19Digital input 8
20Digital input 9
21Digital input 10 / ignition switch
26Aux 9–12 power supply
27Ignition TTL cylinder 1
28Ignition TTL cylinder 2
Battery constant (HOT) supply
OEM-D-12 Injector 1&7 (#10)
OEM-D-11 Injector 2&8 (#20)
OEM-D-24 Injector 3&5 (#40)
OEM-D-25 Injector 4&6 (#30)
OEM-D-6 ISC stepper coil 3 (ISC3)
OEM-D-5 ISC stepper coil 4 (ISC4)
OEM-B-5 Check-engine lamp (W)
OEM-B-8 Fuel pump control (FC)
OEM-B-4 EFI main relay control (MREL)
OEM-B-6 Fuel pump relay (FPR)
OEM-B-7 A/C clutch relay (ACMG)
OEM-D-19 O2 heater 2 (HT2)
OEM-D-20 O2 heater 1 (HT1)
OEM-D-17 Cold start injector 1 (STJ1)
OEM-D-8 ISC stepper coil 1 (ISC1)
OEM-D-7 ISC stepper coil 2 (ISC2)
OEM-A-2 Starter signal (STA)
OEM-B-19 Stop light switch (BK)
OEM-B-20 A/T kickdown switch (KD)
OEM-A-1 Ignition switch (IGSW)
Aux 9–12 power supply
OEM-C-5 Ignition 1 (IGT1)
OEM-C-13 Ignition 2 (IGT2)
SP-14V · 5 pins
SP-0V · 6 pins
SP-GND · 6 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.
58 / 58 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
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