I have used the search function and can not find info on my problem.

I agreed to help a friend put a new engine in her 92 civic cx hatchback and the engine she got me was a d15b7 out of a 94 Dx (her's is a d15b8).

i got the engine in, then I went to a junkyard and got a new computer P06 (old one was a p05) that i believe was specific to that engine. I used the DX engine wiring harness with the 4 wire o2 sensor.

<U>Here is question:</U>
the car will not start at all now. Is this because I need to change the wires between the wiring harness and the ECU? Like i said i replaced the P05 ECU with the P06. what exactly is the difference in the Pinouts of the two differing ECUs?

Any advice I could get would be appreciated.