Honda ECU Pinouts
OBD 0
Pinout
'88 HF/Si
'90-1 DX (Std.)
'90-1 HF/Si
'89-92 EF8/9 SiR
A1
No.1 INJ
Aux INJ w/A3
No.1 INJ
No.1 INJ
A2
GRD w/A4 to Main Relay
GRD w/A4 to Main Relay
GRD w/A4 to Main Relay
GRD w/A4 to Main Relay
A3
No.2 INJ
Aux INJ w/A1
No.2 INJ
No.2 INJ
A4
GRD w/A2 to Main Relay
GRD w/A2 to Main Relay
GRD w/A2 to Main Relay
GRD w/A2 to Main Relay
A5
No.3 INJ
Main INJ w/A7
No.3 INJ
No.3 INJ
A6
Purge Cut-Off Solenoid Valve
Purge Cut-Off Solenoid Valve
Purge Cut-Off Solenoid Valve (HF Only)
Purge Cut-Off Solenoid Valve
A7
No.4 INJ
Main INJ w/A5
No.4 INJ
No.4 INJ
A8
Lock-up Control Solenoid Valve
Lock-up Control Solenoid Valve
Lock-up Control Solenoid Valve
Spool (VTEC) Solenoid Valve
A9
-
-
-
-
A10
-
EGR...
- Sticky