Hi there,
So a few weeks ago on a bit of a drive my R33 GTS started running very sloppy, it was very gutless and almost sounded like i had a lumpy cam in it or something. Also the sound out of the exhaust was very poppy and i could smell petrol as i was driving.
It was coming up to a 200k service, thought it might have been a dirty/dodgy spark plug that might have been stopping a spark to a cylinder. Its pretty obvious that only 5 out of the 6 cylinders are working.
I got a service as soon as possible, changed the spark plugs etc. Took it for a drive with my mechanic around the block and nothing, it was running great. Later that day i went for a drive to the bank and it started doing it again. Just my luck.
Now this idle/running sloppy thing only starts after the car has been warmed up an about 10-15 mins of driving (which some people have thought of that to be unusual).
I recently showed a family member who is also a mechanic. He took a quick look over it and said if its not the spark plugs, it could either be coils, leads or injectors. He also gave it a rev in neutral and after a few revs, when it hit about 5.5-6k it did a big backfire.
I would like to know of anyone who has had the same problem as mine. I have looked around at other threads and others seems to have similar problems but the question never really gets answered i suppose.
Any help would be great.
Thanks