1996 C220 Random Multiple Cylinder Misfiring?
My 1996 C220 failed emissions testing based on the following results:
1) misfiring on cylinder 1
2) random multiple cylinder misfiring
3) "check engine light" and "command" module not working
The previous owner must have disabled the "check engine" light because it is not lit. Can someone please give me a diagnosis on what could possibly be wrong? I appreciate your feedback. Thanks.