Thread: fuel trim problem

No been driving it for about 2 hours now and no change still

2 things I would try would be to see what it locks in at during wot.
If its really off , reset trims with the aero force

If that doesn't help any then the maf table is really off and a custom tune would help

That is , assuming there is no user error like a leak etc...

Sounds like he needs a wb tune. My long trims were crazy high like that and once I did the wb tune they are as low as -2.x and as high as 1.x

you mean what fuel trim it is when its wot? trust me i would love to have an in car tune but there's just no one around here (that i know of) that can do that. Closet place would probly be zzp.

I don't Wideband tune my trims up to PE and they are spot-on

Yeah if its locking in close to zero or not

Not sure what pe means. And long term trims at wot are low numbers changes but today it has been +/- 1-3 got up to 10 one time just cruising around

Lol well its hard to help when you don't even understand what your talking about !
PE , when your in pe you need your trim to lock in as close to 0 as possible.
The rest of the maf table is your cruise table so to speak. Those should be netting +5/-5

I don't understand the whole tuning thing yet thus why I asked what pe was an abbreviation for and why I sent it in to be tuned instead of buying a tuner lol

you mean power enrichment?

Yeah, pe=power enrichment

sorry not up to date fully on all the abbreviations yet. Ok so now what he said is making sense. Im gonna try to reset my trims and see if it goes away if not continue looking for a mystery vac leak i guess

still not seeing any vac leaks i reset my trims and they are +1-0 at idle and when i get on it the trims go to high negative numbers. Anyone know someone here in Iowa with a tuner that would be willing to help or at least look at my car?