Do you have done,tune up,fuel filter,coils,module,wires,plugs?
SOURCE: 1994 Cadillac DeVille Concourse - Runs rough?
The "check engine" light will "light" when there is a malfunction in the engine management system. The fault code is then stored in the computer. The computer must be scanned to retrieve these stored faults to pinpoint the malfunctioning component. We recommend buying your own scanner and doing it yourself. With a pocket scanner you can check for fault codes to find out why the light came on in the first place. You can clear your cars trouble codes after you replace the malfunctioning sensors.
SOURCE: 1999 Jeep wrangler runs rough
Check the gas, could be water in it or drive the car with a fuel
pressure tester connected to it and watch to see if you lose pressure.
Normal pressure while driving is about 30 to 40 psi
SOURCE: 1985 corvette
you might want to replace the plug end. I had a 99 neon with the same ploblem changed the sensor but the plug was shorted, changed that and it run great ever since.
SOURCE: Jeep grand cherakee 1998 License plate lights not working.
Check this documents:
- ZJ-Secc-8L-Lamps (page 7, fig. 10)
- ZJ-Secc-8W-Wiring-Diagrams (rear lamps / page 139 and next, Diagram ZJ 98 and next)
Good luck (rated this help)
SOURCE: I have 2004 Jeep Grand Cherokee special Edition
have you checked the IAC, idle air control,or cleaned the throttle body and plate.
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May want to check compression before buying a lot of tune up parts that may not fix your problem. If it idles rough but clears up at high rpm you could have a burnt valve.
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