OK here it is guys i have a b16a2 in my 97 civic lx, i have a p28 ECU, i bought a obd2a (car) to obd1 (ECU) so i got the engine running but with the stock p2e ECU and it runs so good but no vtec and the error codes i had was all obd2 stuff (secondary o2 sensor, primary and secondary heat o2 sensor things). i plug in the chipped p28 and it idles all over the place up down over and over. i did the IACV conversion on the wiring and i have a check engine like on. here is the problem with that i can't get the codes with the obd1 ECU. i plug in the same clip i was using to read the error codes from the obd2 ECU did the same thing with the obd1 ECU and the light just stays on. what could it be? is the ECU just no good? i took the chip out same thing put the chip in same thing nothing is working with this obd1 ECU what could it be? o yeah and the other thing is with both ECU's my SRS light just stays on what could cause that?

 

yeah its probably the ecu or go to the engine swap thread serach for it and go through it step by step

 

well i got the engine in and running it is just the ecu but i got you i will move it over to the ecu and tech section

 

Yeah, I did the Y8 manifold conversion on my 98 Y7 engine, did the 2-wire IACV conversion, and was putting a chipped P06 OBD1 ecu in. Idle was crazy but stayed up around 2500, wouldn't rev over 4000 either. Put the P2E in, ran just fine. Was just a bad P06 ecu I guess.