C280 Bad Miss on Even Slight Acceleration
 

My 94 C280, under even extremely gentle acceleration, started to miss badly. (Check engine light has been on throughout all this). I would have to pull over, shut off the engine, then restart the engine to get rid of the miss. I replaced the gas cap and the spark plugs, which helped tremendously. The miss is almost non-existant now, but still appears under hard acceleration. And again, the only way to get rid of the miss is to turn off the engine, then restart. The check engine light has been on throughout all this. Can anyone help? Thanks! Doug

If the CEL is on I suggest you get the codes read.

Code retrieval will probably verify, that you are setting misfire codes.
May want to have a close look at your sparkplug wires. ;)
You could spray them with a fine watermist, while the engine is idling.

M104.

Wiring harness
Coils if it has the old blue labels in it
really, really bad air flow meter (long shot)



Joe

replace all three of your coils and replace the boots and plug wires also. Recently had to do the same to my1995 C280