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95 C36 AMG 92 190e 2.3
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34 Posts
Discussion Starter #1
what are the most common effects of getting the check engine light with the 95 C36 the car seems to be running more aggressive/faster in the past few days, but when at a stop or under 10mph it revs very oddly fluctuating up and down in rpm's. any idea's tips?
 

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'01-E320 & 02-ST2
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31,631 Posts
Fluctuating revs often suggest a vacuum leak, but it could be lots of things,

Regardless whether you actually have a CEL (MIL) I would check for codes, which can be present even if the lamp is not illuminated.

Codes are the place to start; otherwise you're just guessing.

That said, you could begin with a careful inspection of all vacuum lines and vacuum-controlled diaphragms to eliminate leaks.
 

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c36, 1970 LeMans Sport, a truck
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318 Posts
Probably a failing MAF (most likely) or a really, really messed up O2 sensor.

BTDT

Pull the codes and post 'em.

rjp
 
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