1986 560SL
The nasty job of replacing my fuel pumps without a hoist accomplished nothing.
The car starts right up, but still idles rough and won't rev above 3000 rpm in Park. Anything more than about 1/2 throttle causes it to bog down. It can't hardly move under its own steam.
Recap...
- Problem started with car idling and accelerating a bit rough.
- Ran a couple cans of injector cleaner. No change.
- Replaced plugs (one was fouled), checked wires etc. No change
- Did compression test. All ok.
- Damaged EZL ignition module by stupidity. Replaced it and coil. No change.
- Tried another can of injector cleaner. No change.
- Situation suddenly deteriorated. Car undriveable.
- Replaced fuel pumps. Checked for blockage. No change.

I hate to take my hobby to a pro but I am stymied. My next guess would be a faulty fuel distributor but my diagnostic abilities are obviously crappy and those devices are expensive.
Any help out there?