5,300-5,500 stumble
Well this problem with my car has been bugging me for quite sometime. It started out of no where. The problem is at about 5,300-5,500 my car misfires. It sounds like the car is on the Rev limiter. Now here is the odd part. It only does this in first and second gear. If I click third and run the car to redline it pulls like a train. Im getting a misfire code for cylinder #4 and a multi-cylinder misfire. I have changed the coil, wires, and plugs. Im now running a stock coil, ngk 4306 plugs and msd wires. The only thing I havent done is move injectors around. It doesnt matter what psi I run and the car is running about 11.4 a/f. The only other things I can think of are intake leak or injector clog. Any ideas would be great. And I will list my mods
57 trim turbo, SAFC, CTI tb exhuast and fmic, hardpipes bov, rc 750's, kenetic tb. I have others but those are the basics.
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11.34 @ 128.33 mph. Stock motor, head, cams and ecu |
