NEED HELP! I cant find whats wrong!
Thread Starter
Intermediate
Joined: Oct 2004
Posts: 30
Likes: 0
From: Macclenny FL
NEED HELP! I cant find whats wrong!
I have a modified 90 l98 with a problem. When I go to drive it the rpms will jump up and down and will slow the car down. I also hear a slight back fire from the exhaust. I checked the plugs, wires, cap & rotor, all new. I checked the fuel pressure and it was at a constant 41 psi. I took it to a dealership they had it for over a week, and said that there wasnt a problem, only that it did it every once in a while and that they cant find a problem. So any help would be nice.
Racer
Joined: Nov 2005
Posts: 456
Likes: 3
From: Sumner Texas
Sure sounds like an ignition problem to me. I would check electrical connections to the distributor to start with.
I am NOT a believer in throwing parts at a problem without diagnosis, but in the case of an intermittent problem there aren't many alternatives.
I would try the ignition module first and then maybe the coil.
Best of luck,
I am NOT a believer in throwing parts at a problem without diagnosis, but in the case of an intermittent problem there aren't many alternatives.
I would try the ignition module first and then maybe the coil.
Best of luck,
