1997 Mercedes Benz C200 Car Idling Horribly Changed Spark Plugs And Seems

1997 MERCEDES BENZ C200
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SOONTIMEDRIVA
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  • 1 POST
My car is idling horribly. I have changed all the spark plugs & it seems like the last piston isnt firing. But i cant figure out why or how to fix this problem. I have been told to change the air flow mass plug but it is expensive and i am not positive thats whats causing the problem. I also cannot find the plug to run a diagnostic on my car, i checked under the steering wheel but no luck. Please help.
Apr 7, 2013 at 11:17 PM
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ASEMASTER6371
  • ✓ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
start with a compression test on the cylinder.

forget about mass air flow.

Roy
Apr 18, 2013 at 2:47 AM
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