Ok...So I have been searching around on here and various other sites for some answers. I am a dsm person myself but tring to help a good friend.

He has a 1992-4 civic si h/b with a b18c running a pr3 ecu. he has two codes... 7 and 23... tps and knock sensor. I know whats wrong with his tps but not the knock sensor.

He bought the car from a guy who did the swap himself, so he doesnt know whats going on with the wiring either. I know a little about hondas, but not when it comes to this stuff.

I am pretty sure he has the stock d16 harness. The other thing is how can I find out weither the pr3 is obd 0 or obd 1? And which one do I want? i assume I want obd 0? And which distributor do I need? How can I tell which one is already on there?

Can a p72 plug right into a factory harness? I know thats the one I need in order for my secondary runners/butterflies to function. But I was hoping to atleast get the car running deciently using the pr3. Is that possible? I think right now it is just in limp mode.

Sorry I am throwing random statements in here but I have so many questions. I have been out of the game for a while, just tring to refresh my memory.

ANY HELP AT ALL IS GREAAAATLY APPRECIATED!!!!!!!!!!!