Not sure if it is a mod... - Mercedes Benz SLK Forum

Performance MODS for the R170 Tuning and Performance modifications for your SLK

 
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#1 Old 06-20-2010
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Not sure if it is a mod...

I have a little hitch in my getalong. In 2nd gear at about 2500rpms, every so often I get a "cough" in the acceleration and the check engine light comes on. I drive for a little while with out any rush to go fast and it seems to take care of the light.

I am running 91 octane unleaded. I try to stay away from the non known brands of fuel.

Is there something that is wrong with the injectors? the fuel itself?

I had it tuned up a little while ago with the good stuff, not the affordable stuff.

Do I need to replace something? Upgrade something?

Help please.

Mr. Freeze
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#2 Old 06-20-2010
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have your fuel cap and/or fuel filter checked out. these are the most common cause of acceleration/engine light issues
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#3 Old 06-20-2010
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#4 Old 06-21-2010
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