LY6 Tune? Feels like a misfire?!?!
07-23-2012, 09:13 AM
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Staging Lane
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Join Date: Jun 2011
Location: Lena, WI
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LY6 Tune? Feels like a misfire?!?! I've got my 08 LY6/6L90E running and driving pretty good other than it seems like I have a slight misfire at low rpm acceleration. I've changed all the coils with another vehicle that is running good, cleaned and purged every injector, and I still have the same result.
While driving and scanning with HPT, I notice that my timing retards in the range of 0-(-4) degrees on slow to moderate acceleration and it feels like a misfire. When the rpms get into the 3,000 range, I can feel the misfire go away and it runs like a rocket but I can't seem to pinpoint the miss.
Any ideas? Anyone out there with a VVT tune that would be willing to share just so I can compare my timing tables?
While driving and scanning with HPT, I notice that my timing retards in the range of 0-(-4) degrees on slow to moderate acceleration and it feels like a misfire. When the rpms get into the 3,000 range, I can feel the misfire go away and it runs like a rocket but I can't seem to pinpoint the miss.
Any ideas? Anyone out there with a VVT tune that would be willing to share just so I can compare my timing tables?
