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02-10-2011
Okay well ive always seemed to have a problem with my fuel trims. I dont have any vacuum leaks so I'm thinking its something else. At idle my ltft's are anywhere from +14 to +16. But as soon as i start accelerating they jump down to +3 to +5 . Could it just be a bad tune? I have an intense pcm btw
02-10-2011
if youre sure you dont have any vac leaks it might be the tune. however, there are other things that can create high fuel trims.
02-10-2011
Many stock MAF tunes can have crazy wacked out fuel trims. I've started on cars that were +12's in the winter.
If you're sure that you don't have a vac leak (which would point to the +16 almost any time), then the tune is just that far off.
02-10-2011
I mean i know that the maf screen is removed.. would that mess up anything?
02-10-2011
you have a vac leak, scan idle air counts
http://www.streetfire.net/video/2001...ynp_208097.htm
02-10-2011
put it back in and see what happens. its not a restrictive part and its only job is to keep laminar flow across the MAF.
02-10-2011
Also if you have a 2001 and new GP and no rear 02 that could cause the issue aswell. But Im still 99 percent thinking vac leak
http://www.streetfire.net/video/2001...ynp_208097.htm
02-11-2011
well i know my evap system isnt working so idk if thats affecting anything.. I'll have to pick up a screen for the TB from the junkyard because i wasnt the one who took it out
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