My car started missing the other day. The car runs fine in higher RPM's, but when I'm putting around it misses. When I hold it at 2 grand it misses. I took it in and had the computer hooked up to it and they fixed a relay and this other sensor, but it still misses. I put in new plugs in, but didn't gap them. I also put in a colder plugs because of my NOS. The tech said that if it was the wires or plugs it would of showed up on the computer. I don't know if I should buy the right plugs, wires, and rotor and see if that takes care of it. I'm not for sure what it could be??? Please help me, thanks.



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1988 GTA (36,000 original miles):
Crane Cam, K&N
Flowmaster, Off Road Pipe, NOS,
MAC underdrive pullies
Tuned by Motorsport Depot (402)274-3831.
1/4...12.90s at 112mph

 

GTA,

Been there. I have had the same problem with my '86 after only 22,000 miles. I chased around the ignition, fuel filters, checked for bent pushrods, vacuum readings, compression tests, several kinds of ingnition modules, distributor caps, rotors, a different PROM, FPR, etc.

I finally did a power balance test with the fuel injectors and found two of them that made almost no difference until I manually actuated them with a jumper setup.

I sent my injectors to Cruzin' Performance for cleaning and flow-matching, and everything has been fine ever since. It was like I had a new engine. Needless to say, I was pleased to have my car back and to have found the elusive problem.

Incidentally, this was after I had the fuel rail and injectors "flushed" at the dealership with the pressurized cleaning system.

You might want to try the test yourself.

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Later,
Vader
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