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Dizzy and Timing haven't been touched or moved, all i've done is pin swap and wire the coils - plug in the VEMS ECU. One point worth mentioning last night i put petrol into my intake and tried to start again, a couple of pops out of the idle control valve. The intake was red hot as if the coils fired with the intake valve (s) open and set fire to the petrol inside. This must be a timing issue ?!?
Anyone running a 3b on VEMS with coil pack conversion?? Desperately need help trying to get my car to even start, carried out aan pin swap but retained the standard dizzy sensor.
This is just me but I would think such a radical change from a 3B single coil system to a five coil-on-plug system would be best done in two stages:
Stage 1. Make the necessary changes to use five coils with an AAN or ABY ECU (borrowed if not purchased). Get the car running on that first.
Stage 2. Once you are happy running on the AAN or ABY ECU, then (and only then) move on to VEMS, confident that your initial 3B to five-coil wiring changes worked.
At this point with a 3B to VEMS change, there are so many things that *could* be wrong, it will be difficult to get it sorted easily.
But I do wish you good luck.
RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avant
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