BenzWorld Junior Member
Date registered: Dec 2008
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DrJfrmLA: thanks for your reply.
A few days ago, my car was sent to MB dealer to replace neutral switch, and I was told the car has misfiring problem. I want to fix the problem by myself because the dealer charges me too many labor hours.
Actually, I knew this problem. The check engine light came on for a while, also I can tell the shaking of engine when the car starting and low speed. Couple of weeks ago, I replaced all six plug sparks, but the problem is still there. I read some threads here, and some members discussed the similiar issue. Some suggested to replace ignition coil, and some said to replace fuel injector, and some said ignition wire. I don't know where I should start.