My swap is done...welll almost.

Heres the problem and hopefully you can figure it out.

The engine is in and running, but it won't idle off of the P13 ECU I have, and it runs rich while running off that ECU.

The engine is a 98 H22A4 and as I said the ECU is a P13 ECU from a 92 Prelude. Everything else on the engine has stayed except for the OBDI conversion.

As far as we know (we have checked a few times now) all the wiring is straight and the correct pins have been jumped.

The car runs fine on my F22 ECU but not on the Prelude ECU....any clue why this would be?