100%
Stock ECU being replaced
M800-A-28 INJ6
5 no data
7–8 no data
M800-B-8 Digital Input 1
11 no data
M800-A-29 INJ7
14 no data
M800-A-18 AUX1
M800-A-1 AUX2
M800-A-23 AUX3
M800-A-30 INJ8
M800-A-24 AUX4
22 no data
M800-A-16 Analog Voltage Input 3
M800-B-10 Digital Input 3
M800-B-11 Digital Input 4
M800-A-31 AUX5
M800-B-20 Analog Voltage Input 6
M800-B-21 AV7
31 no data
OEM-A
Stock ECU being replaced
1Coolant temp gauge drive
5 no data
7–8 no data
9Vehicle speed sensor
11 no data
12Immobilizer indicator light
14 no data
15Fuel pump relay (USDM)
16Fuel pump relay (JDM)
17A/C clutch relay
18Check engine light (MIL)
20Radiator fan relay
22 no data
23Secondary O2 sensor
24Starter switch signal
26Power steering load detect
28Air pump relay
29Fuel tank pressure sensor
30Electrical load detector
31 no data
Power source 1 (main relay)
GND
M800-A-20 INJ2
M800-A-21 INJ3
M800-A-22 INJ4
6–8 no data
Power source 2 (main relay)
GND
M800-A-19 INJ1
M800-A-32 AUX6
13–19 no data
GND
GND
M800-A-27 INJ5
24–25 no data
OEM-B
Stock ECU being replaced
1Power source 1 (main relay)
2Power ground 1
3Injector 2
4Injector 3
5Injector 4
6–8 no data
9Power source 2 (main relay)
10Power ground 2
11Injector 1
12VTEC solenoid
13–19 no data
20Ground
22Ground
23Idle air control valve
24–25 no data
M800-A-33 AUX7
M800-A-3 IGN1
M800-B-9 Digital Input 2
6 no data
0V sensor
M800-B-1 Crank Reference Timing Input
SP-0V · 3 pins
M800-A-34 AUX8
M800-A-4 IGN2
M800-A-5 IGN3
M800-A-6 IGN4
M800-A-17 Analog Voltage Input 4
M800-A-25 Analog Voltage Input 5
M800-A-14 AV1
0V sensor
5V ref
M800-B-2 Cam Sync Timing Input
SP-0V · 3 pins
23 no data
M800-B-22 AV8
M800-B-4 Analog Temperature Input 2
M800-B-3 Analog Temperature Input 1
M800-A-15 Analog Voltage Input 2
5V ref
0V sensor
0V sensor
OEM-C
Stock ECU being replaced
1Primary O2 heater
4Ignition coil 1
5Alternator FR signal
6 no data
7Sensor ground 1
8Crank sensor + (CKP+)
9Crank sensor − (CKP−)
11Secondary O2 heater control
12Ignition coil 2
13Ignition coil 3
14Ignition coil 4
15Secondary O2 sensor
16Primary O2 sensor
17MAP sensor
18Sensor ground 2
19Sensor 5V supply 1 (MAP)
20Cam (TDC1) sensor +
21Cam (TDC1) sensor −
23 no data
24Air pump electric current sensor
25Intake air temp sensor
26Coolant temp sensor
27Throttle position sensor
28Sensor 5V supply 2
30Cam (TDC2) sensor −
31Timing ground
1–16 no data
OEM-D
Stock ECU being replaced
1–16 no data
M800
M800-A
M800
1AUX2
25V Engine Sensor Supply
3IGN1
4IGN2
5IGN3
6IGN4
95V Auxiliary Sensor Supply
10GND Battery Negative
11GND Battery Negative
14AV1
15Analog Voltage Input 2
16Analog Voltage Input 3
17Analog Voltage Input 4
18AUX1
19INJ1
20INJ2
21INJ3
22INJ4
23AUX3
24AUX4
25Analog Voltage Input 5
26VBAT Battery Positive
27INJ5
28INJ6
29INJ7
30INJ8
31AUX5
32AUX6
33AUX7
34AUX8
OEM-A-16 Fuel pump relay (JDM)
5V ref
OEM-C-4 Ignition coil 1
OEM-C-12 Ignition coil 2
OEM-C-13 Ignition coil 3
OEM-C-14 Ignition coil 4
5V ref
GND
GND
OEM-C-17 MAP sensor
OEM-C-27 Throttle position sensor
OEM-A-23 Secondary O2 sensor
OEM-C-15 Secondary O2 sensor
OEM-A-15 Fuel pump relay (USDM)
OEM-B-11 Injector 1
OEM-B-3 Injector 2
OEM-B-4 Injector 3
OEM-B-5 Injector 4
OEM-A-17 A/C clutch relay
OEM-A-20 Radiator fan relay
OEM-C-16 Primary O2 sensor
VBAT Battery Positive
OEM-B-23 Idle air control valve
OEM-A-1 Coolant temp gauge drive
OEM-A-12 Immobilizer indicator light
OEM-A-18 Check engine light (MIL)
OEM-A-28 Air pump relay
OEM-B-12 VTEC solenoid
OEM-C-1 Primary O2 heater
OEM-C-11 Secondary O2 heater control
M800-B
M800
1Crank Reference Timing Input
2Cam Sync Timing Input
3Analog Temperature Input 1
4Analog Temperature Input 2
8Digital Input 1
9Digital Input 2
10Digital Input 3
11Digital Input 4
140V Comms Reference
150V Auxiliary Sensor Supply
160V Engine Sensor Supply
20Analog Voltage Input 6
21AV7
22AV8
OEM-C-8 Crank sensor + (CKP+)
OEM-C-20 Cam (TDC1) sensor +
OEM-C-26 Coolant temp sensor
OEM-C-25 Intake air temp sensor
OEM-A-9 Vehicle speed sensor
OEM-C-5 Alternator FR signal
OEM-A-24 Starter switch signal
OEM-A-26 Power steering load detect
0V sensor
0V sensor
0V sensor
OEM-A-29 Fuel tank pressure sensor
OEM-A-30 Electrical load detector
OEM-C-24 Air pump electric current sensor
SP-GND · 7 pins
SP-14V · 4 pins
SP-0V · 10 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.