It's a 1996 2.2L. Here is the list of new parts in the past 2 months:
Exhaust (almost all, except the cats and o2 sensors, but no leaks anywhere)
Ignition coil
Spark plugs (today)
Timing was reset
Motor mounts
transmission mount
PCV valve and connecting hoses all cleaned
IAC cleaned
MAF cleaned
Axles and stuff, but this is unrelated
The timing has been off for a little while, but just discovered and fixed today! I was throwing a code for cylinder 1 + 3 misfires. The car now runs great and doesn't have the constant misfire it used too. It is a non-interference engine. When I replaced the spark plugs, the 2 that were misfiring were pretty black. When I peaked into those two cylinders they also looked pretty black.
I can hear the car misfire through the exhaust when I come down to idle from decelerating. Usually happens around 1,000rpm or so. The idle then smoothes out and I don't hear it misfire.
Also, the car will misfire badly when I turn the engine off. I will be at idle (of course) and then turn it off. It misfires loudly until total shut down.
What do you guys think?
I am going to run seafoam through the top of the engine and the gas tank tomorrow morning.....