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post #1 of 2 (permalink) Old 10-12-2016, 09:14 AM Thread Starter
Join Date: Oct 2016
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2010 Cobalt Ss/tc Boost Problem

My 2010 cobalt sstc is having problems. i switched from the trifecta 91 tune to the trifecta E47 tune. my car is kinda sluggish, it wont let me build any boost after i drive down the highway for about 5 minutes, but boosts fine in town. i was throwing a MAf performance code so i replaced the maf and still having issues. i now through a cyllinder miss fire in 1 & 3. the RPMs will hold or decrese very slowly after i let off throttle. Is this all tune related??
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post #2 of 2 (permalink) Old 10-12-2016, 11:22 AM
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Location: Oklahoma
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Sounds like probably a tune issue. You are running E47 though, right? Not still running 91 on the new tune?

Originally Posted by Plain Jane View Post
Believe me, these cars have a habit of growing on their owners. Your feelings will only strengthen over time...
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2010 , lnf , no boost

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