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11-05-2016, 02:33 AM
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Registered User
Join Date: Aug 2005
Location: Southern California
Posts: 241
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Re: P0175 p0172 p0650 long fuel trim -25.0
I put in a new corvette fuel pressure regulater and the long fuel trim dropped down to -14, there is no change in fuel trim when I disconnect the MAF but, it runs a hell of alot better without it. So I'm still in the hunt for either a bad MAF, vacuum leak or stuck injectors.
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