Wassup..... I just got a JDM H22a engine with the ecu....unfortunately there were no wiring harness...I drive a 92 prelude Si. I believe I can use my original wiring harness....but I know that I have to run a separate wire from the vtec solenoid to the ecu. My problem is....what pin on the JDM ecu should I use...I cant seem to find a diagram for the p13 ecu. I would really appreciate any help anyone can offer....Thanks...

 

I got it from... https://honda-tech.com/zerothread?id=549372
Hope it helps.

P13 pinout
Contact Color Description
A1 brn Injector #1
A2 yel Injector #4
A3 red1 Injector #2
A4 grn/yel VTEC Solenoid Valve
A5 blu Injector #3
A6 or/wht HO2S heater coil
A7 grn/blk1 PGM-FI Main Relay coil
A8 grn/blk2 Shorted to A7
A9 blk/blu IAC Valve
A10 - -
A11 red2 EGR Control Solenoid
A12 blu/red Condenser Fan Relay
A13 blu/wht MIL
A14 - -
A15 red/blu A/C Clutch Relay
A16 wht/grn Alternator
A17 pink IAB Solenoid Valve
A18 - -
A19 wht Intake Control Solenoid Valve
A20 red/grn EVAP Purge Control Solenoid
A21 yel/grn1 ICM
A22 yel/grn2 Shorted to A21
A23 blk1 GND
A24 blk2 GND
A25 yel/blk PGM-FI Main Relay (power)
A26 blk/red VTEC Pressure Switch (GND)
B1 yel/blk PGM-FI Main Relay (power)
B2 brn/blk GND
B3 - -
B4 - -
B5 blu/blk To A/C Switch
B6 - -
B7 - -
B8 red/grn PSP Switch
B9 blu/red Starter Cut Relay
B10 orn2 VSS
B11 orn3 CYP
B12 wht CYP
B13 orn/blu TDC
B14 wht/blu TDC
B15 blu/grn CKP
B16 blu/yel CKP

D1 wht/yel Battery
D2 grn/wht1 Brake Switch
D3 red/blu KS
D4 brn/wht SCS
D5 - -
D6 lt blu or lt grn VTEC Pressure Switch
D7 lt grn/red Data Link Connector
D8 - -
D9 wht/red ALT
D10 grn/blk ELD
D11 red/blk TP Sensor
D12 wht/blk EGR Valve Lift Sensor
D13 yel/blu ECT Sensor
D14 wht HO2S Sense
D15 red/yel IAT Sensor
D16 - -
D17 wht/blu MAP Sensor
D18 - -
D19 red/wht EGR Valve Lift Sensor
D20 yel/wht TP Sensor
D21 blu/wht MAP Sensor
D22 grn/wht2 TP Sensor

 

use the search function. this is like the 10th time this week this question has been asked.

 

A4 - VTEC Solenoid Valve
D6- VTEC Oil Pressure switch

 

Thanks a lot for your help....hope you dont mind me asking again...but which one is pin A4 and D6 on ecu...thanks again...really appreciate this....

 

Thanks....appreciate your help.....