i never figured out my misfire issue. it drove me insane. tried everything i could over the internet and still would get the CEL every couple weeks at idle.

good luck bro, i know alot of people who have never cured it.

tried all different types of plugs and gapping sizes
bought new injectors
new coil packs
checked for leaks- none
took the pulleys off

i tried all that and still got the code....