MISFIRING AFTER SPARK PLUGS CHANGE.COULD HAVE WRONG PLUG GAP. THE 1.8L ENGINE SPARK PLUG GAP 0.041 AND THE 1.9L ENGINE SPARK PLUG GAP 0.054 IF YOUR PLUG GAPS CORRECT.COULD HAVE WRONG PLUG WIRES. IF YOU HAVE THE 1.8L ENGINE REPLACE THE DISTRIBUTOR CAP AND ROTOR.
If it wasn't misfiring before. Make sure you have the proper gap on the spark plugs. Make sure you have the wires connected in the correct order. If you have the old wires, you may want to end up trying those one at a time to make sure you don't have a defect wire either.
Thank you,
Lee
SOURCE: check engine light 2004 GMC Yukon
When my check engine light went on, it was a oxygen sensor
SOURCE: code p303
very common problem two things either the injector on that cylinder is bad or the fuel rail need clean out with injection clean a good shop can clean them.
SOURCE: 2002 chevy tahoe cylinder 8 misfiring
You either have a bad plug wire or have cracked one of the new plugs while installing them. Try watching under the hood while someone else accelerates the engine to locate the noise.
Good luck dont forget to rate.
SOURCE: i have a 2001 mercury cougar with the 2.5L v6
Its time to do a injector balance and cylinder leakage test, to determine whether the injector or its circuitry is bad . The leakage test will tell you if the cylinder has a compression leak.
SOURCE: 99 dodge caravan #4 cylinder misfires, i replaced
This is a known dodge issue replce the injector!!!!! done deal
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