Here is a concept for you to try to wrap your mind around. The compressor is the last load on the belt path, so when the compressor is engaged, the belt pushes harder against all the other pulleys (but not the tensioner pulley).
Check pulleys for "belt contact area" as a indicator for possible belt alignment problem.
If the compressor was replaced once before, there may be missing alignment dowels.
Harmonic balancer "rubber sleeve" may be the root cause of your problem....got a wobble?
System DescriptionEKS00A8GPower is supplied at all times:●through 40A fusible link (letterm, located in the fuse and fusible link box)●to ignition switch terminal B.With the ignition switch in the START position, power is supplied:●from ignition switch terminal ST●to IPDM E/R terminal 21.With...
Pretty common for old plug wires to get damaged during spark plug replacement, and cause a misfire shortly afterwards. You might want to first check that the wire is firmly attached to plug and coil, those rear plugs are hard to reach.
I can only see the pics provided, but I would consider putting an open end wrench over the shaft and then use a long punch through the ring gear hole (and hit the wrench "down low") to try to knock the "bearings" out.
Mileage seems a little low for "first set of spark plugs", but I would replace them....easy and it doesn't cost much. Cleaning throttle body may also be beneficial.
My take on "Don't touch the throttle, you will flood it."...that is only slightly true. More true to say "It's fuel injected, you...