Quote Originally Posted by hseries4
Have you undone the VAFC? You mentioned it, but never said you did. You need to be able to cancel out all other variablse as to why it's not working. It would seem to me that the controller is trying to override the P13 since it redlined at 6500rpm.

Also on that note, it's bad enough that you're using the P14, but are you sure that it's an H22a4? The a4 is an OBD-II motor...or do you have a converter?

exactly what i was thinking... the a4 is an obd2 motor and if your using an obd1 harness that could be where your problem is. what you would need is a OBD1 to OBD2 conversion harness. but using a p28 is not the problem unless its just a bad ECU or unless is was chipped or something. its a really common ECU to use... the only diff is i think the p13 has a speed limiter on it but the normal redline and fuel cutoff.

but i would find another ecu thats the same to plug in. that would be the easiest route.

i think you might need an obd2 ecu to be honest