I am new here and I know someone is going to chime in and say look in the archives or do a search. Well I have been searching for 5 days. I can find info for the swap into a DX/EX/ etc or adding wires to run the MPFI but am not able to find the answers I need specific to my situation so here I am.
I have swapped a 1990 LS integra 1.8a1 into a 1990 civic SI HB. I have extended all the required plugs on the SI harness to fit the integra engine and I know that in order to run the integra's fuel pressure control solenoid and the evap purge control solenoid for emissions perposes which I need where I live, I have to run a wire to the number a10 plug on the ECU.
What I need to know is if the integra is OBDO and the civic is OBDO is the SI harness a complete plug and run with the integra ECU or do I need to switch out or unplug any of the pins at the ECU in order to make this thing run properly.
If this is covered some where could someone please point me to it. Thanks

 

The si harness will work on the motor cause i put an ls in my si hatch and it ran great but if your car only has dpfi your still gonna have to run wires to the computer for injectors, resistor box and such .. use this i just put a b16 into my ef and went off this and the car runs great.

https://honda-tech.com/forums/showth...ight=dpfi+mpfi

 

The si harness will work on the motor cause i put an ls in my si hatch and it ran great but if your car only has dpfi your still gonna have to run wires to the computer for injectors, resistor box and such .. use this i just put a b16 into my ef and went off this and the car runs great.

https://honda-tech.com/showthread...ight=dpfi+mpfi

Thanks for the reply: My 90 SI hb was mpfi so I take it that it should be a plug in and go situation them.