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P0175 p0172 p0650 long fuel trim -25.0

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11-05-2016, 02:33 AM	#6
cagodinez Registered User Join Date: Aug 2005 Location: Southern California Posts: 241	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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