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oldskool73 · 08-23-2018, 07:16 AM

Your long term fuel trims are way out of wack, they should be no more than about +/-10. Mine were up around 27 and replacing the MAF fixed mine.

If you've not already, you might want to try disconnecting the battery for a while so the old LTFT is lost, then taking it out on a decent length trip. The LTFT won't start to adjust until it's warmed up, but may then come down to a normal range.

If not, you've got something else wrong ... https://www.autoserviceprofessional.com/article/94982/Fuel-trim-How-it-works-and-how-to-make-it-work-for-you?Page=2

08-23-2018, 07:16 AM	#2
oldskool73 Registered User Join Date: May 2015 Location: Sydney, Australia Posts: 335	Your long term fuel trims are way out of wack, they should be no more than about +/-10. Mine were up around 27 and replacing the MAF fixed mine. If you've not already, you might want to try disconnecting the battery for a while so the old LTFT is lost, then taking it out on a decent length trip. The LTFT won't start to adjust until it's warmed up, but may then come down to a normal range. If not, you've got something else wrong ... https://www.autoserviceprofessional.com/article/94982/Fuel-trim-How-it-works-and-how-to-make-it-work-for-you?Page=2