Hello everyone, my first time here and I wonder if you can help!
I have a 1994 E320 that belongs to a friend of my wife. It is almost undriveable due to erratic idle, misfiring, occasional stalling. The car does drive smoothly on a very light throttle, but as soon as you try to give it more it starts to miss and drive very poor indeed.
Since I have had the car here I have replaced...
Engine wiring harness due to cracks,
Spark plugs,
Plug wires,
The three coil to spark plug connectors.
All of this to no avail! The CEL was on when I first got the car, giving codes 6 and 7, after clearing these and initially fitting only the new wiring harness I took the car for a ride into the hills using the "drive it like its stolen" method. It still drives very poor with poor idle and is now giving me the codes 22 and 23.
Any help would be greatly appreciated!