Originally Posted by e-one
Every time I rev the engine, the engine management seem to cut the rev at 4000ish.
........ I took the car for a ride it seem that the rev stays slightly below 3000rpm when cruising at 70mph
Had a think about this and the problem may be related. The revs seem a bit low. I've owned an 8v, a 16v and V6. Only the V6 was about 3000rpm at 70mph.
Not sure how the rev counter works, but if it gets a signal originating from the coil packs, and one of these packs is faulty, the may cause the low reading. It may also be why the car is cutting out at 4000ish.
How long have you had the car ???
It may be that the instrument cluster is from a V6. The speedo is calibrated the same, but the revs counter isn't due to the V6 firing more per cycle. That would make your rev counter read about 2/3 of what the revs really are. With me ??
So what you think is 4000rpm is actually 6000rpm. The limiter on the 2litre 8v is about 6800rpm I think.
What does the car idle at ???
I know this stuff about the speedo and rev counter calibration as I had bother with my V6 instrument cluster and tried different dials from the different engines to sort it out. It's a long story but basically it had a 16v speedo put into the V6 cluster, so the speedo was reading slow. I put an 8v cluster in and the speedo read correctly, but the rev counter was reading high. Looked good being able to rev it past 8000rpm (9000rpm actually). Your problem may be the opposite of what I had.