Hey guys,

After suffering from some problems with my 95 c200 ive replaced 2000 dollars of parts to no avail.

When the car is cold, it smells really rich, black plugs as in rich mixture and when pulling away it will hesitate. It will drop revs go like its going to cut out, then if you take your foot off the accelerator it will pick up. Putting your foot down further seems to flood it and stall. This is a result of a wiring harness going bad.

Have replaced

wiring harness
idle speed actuator (throttle body)
engine temp sensor
air temp sensor


Still got the problem! Also when reading from pin four of the diag plug I get four pulses, i think this is to do with MAF over upper limit???

Have also swapped out the MAF, makes no difference. Have also tried another OVP! Nothing!

HELP!