The car revs clean when resting and seems to revs out fine in first gear but after that it has a very slight misfire, not as bad to drop on to 3 cylinders and goes away and returns when giving it the beans but it's there although it also seems to clear before the rev limiter?? I've put a new set of plugs in it, and tried a second set of coils pack which were sold as good units but it's exactly the same. I know the engine was running on ITB's before I bought it so not sure if it's timed up slightly different?? And I'm running a lamda sensor which from what I've read could cause problems??
Any pointers would be very grateful although diagnosing on a forum is very tricky I know.
Thanks in advance
Jay

Jay P
