Originally Posted by GSR_CRX
idk there isn't anything there on a p28 and i don't kno if any of them are the same,....have hiltons manual for 92-95 civic and there is the ECM wiring diagram in the back for 1993 civic si,...wondering if that has a p28 in it when it comes stock ? ? ? if so then im good,...thank'z TR
Yes the 92-95 civic SI/EX ECU is the P28.