So I have a question for you guys, do the CIS-E engine computers ever go bad? My 500SL is a bit weird. It starts up choppy and will stay choppy for a while, then when I go to drive it once I come off an idle it breaks up for a second or two and then accelerates nice and cruises fine. Previous owner replaced the caps, rotors, and coil packs and turned the fuel up till it black smoked at an idle. When I got it I plugged the vacuum back up to the ezl, replaced a fuel pump with a bad impeller along with the fuel accumulator, and turned the fuel down. It runs waaay better than the first day I got it but it still has the stutter off an idle. If I unplug the cold start injector it makes no change on cold start. If I unplug the eha there is no difference when driving. This is making me wonder if the ecu is dead. Anyone ever come across this issue? I just wanna fix the stutter so potential buyers don't look at the car like it's possessed.
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