Misfire of engine after replacing plugs and wires
I did this also recently, but I also changed the distributor cap and rotor. THAT was my problem....Distributor screw tabs on distributor are plastic and can break off.....1st...Make sure you installed the wires in the right firing order. If they're correct, check your cap and rotor and make sure they are seated correctly. If the tabs broke off, Napa makes a metal U shaped piece that fixes this.
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: 1996 Chevy Cavalier - How to replace the spark plug wires?
one at a time so you dont lose firing order ..which is 1 3 4 2
SOURCE: Spark Plug Wire Replacement
the easiest option is to unplug one wire and change that plug, then put the new wire on, repeat for all plugs and wires.
SOURCE: Engine code: Misfire cylinder 1. Replaced plugs
There should be no built up fuel or oil in cylinder. The fuel will be burned off immediately, and there should have been very little unless you have a leaking injector. The only way oil will enter the cylinder is if you have a mechanical failure like worn rings or leaking valve seals.If after replacing the plugs and wires did not correct all or the skip after the first start up and road test then you have another issue causing the skip
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