How can I troubleshoot my car running rough and loosing power

1994 MERCEDES BENZ 280
254,000 MILES
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BROSKIE1953
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I replaced the Mass Air Meter on my 94 C280 suggested by a mechanic as the possible cause of my car running rough, decelerating while driving and sometime cutting off.After replacing the Mass Air Filter the car still does the same thing as before. When I disconnect the Mass Air Meter cable the car runs much better but there is a strong smell of gas. Any suggestions?
Feb 12, 2012 at 11:39 PM
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RASMATAZ
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Go to this link http://www.2carpros.com/articles/engine-misfires-or-runs-rough
Feb 12, 2012 at 11:42 PM