Here is the list of repairs I have completed in the last several months:
1) replaced plugs and wires (just because I had never changed them and the car had nearly 120K miles)
2) replaced plugs because I tightend 2 of them too much and they cracked
3) replaced LIM gasket as well as coolant elbows, valve cover gaskets, and 02 sensor
Everything is going great except I still have a misfire!!!
I do not know what is going on!! I have checked the plugs and wires, and even checked to see if #6 is touching the 02 sensor, it is not. I bought good wires from NAPA and they seem to be ok. When I took it to the shop last week to fix a vaccuum leak, the got a code that had something to do with the EGR valve and another time they got a code for the CAT. Would either of those create a misfire? I am very puzzeled. To tell you the truth. I started to have the misfire problems after I changed the plugs but I could swear they are ok. One other thing, when you give it gas, it initially is worse than just at normal idle. Then once you maintain speed, the miss seems to be gone. Could I have a bad coil? Could a really bad miss damage the coils? I did have a problem where I burned up a plug because I was stupid and ran it too hard while the motor was running lean
I hope someone can answer this rant for me!