SLK-Class (R170) 1998-2003: SLK 200, SLK 230K, SLK 320

SLK/R170: SLK 230 98 Struggling

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Old 11-04-2008, 10:22 AM
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98 SLK230
SLK 230 98 Struggling

I had a secondary injection code.Erased it and it has not come back in 3 different drives.

The car is struggling in upper rpms ranges.I'm pretty sure I can hear the blower whine and the car will rev out while driving but it's down on power for sure.Seemed the more I layed the pedal down the better it got.It will rev out in gear just not smoothly and certainly not the pull it normall has.

Almost like it is not gettng full boost like it should.Idles and drives in traffic like it always has.No check lights at all.Oil is fresh but the air filter is a bit dirty.
Old 11-04-2008, 11:06 AM
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98 SLK230
Almost feels like it is pulling the timing out because of low octane or something.We only use 92 Chevron from the same station
Old 11-05-2008, 02:21 AM
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Could it be a blow off valve?

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