drastically different LTFT's

[SallySpeed3]

Was driving yesterday and decided to monitor my ltft's since it had been a while. In winter I was getting around -8 at idle, -2 while accelerating, and 0 at wot. Well I don't know if it has something to do with the warmer air, but yesterday it was -14 @ idle, between -10 & -8 while accelerating, but still around 0 at wot. Should I be worried? I'm using the OTS v.105 stage 1 SRI 93 oct. Flashed it in december and has been great ever since, but maybe not now? Anyway, thoughts would be appreciated.

 

[Sport6]

Check all your clamps. It seems to be getting plenty of fuel but air seems to be the problem since its removing fuel in all counts.

Edit: Negative numbers are definitely better than positive but its still good to check everything out.

 

[bykeryder4life]

go into atr and re calibrate your maf. the car is running rich. ^^^^Checking your clamps will only help if your trims are very positive, meaning air is entering the system and so the ecu is adding more fuel to make up for it.

 

[SallySpeed3]

Yeah i had a feeling I would eventually have to calibrate my maf. Sounds like a pain in the ass though.

 

[zaka]

I wouldn't care about negative trims @ idle. Mine is -18% idle but 0% WOT. Open loop is more important for me.

 

[8.5MS3]

open loop will always be 0 but that isnt necessarily a good thing.

when the car goes into open loop it doesnt look at trims anymore (which is why you see 0) it looks at the tables.

when it looks at the tables it also takes into account your trims for fueling during closed loop. so if you are at 4k at WOT and your trims are -10, it will take the table value and apply that -10 to it.

if your trims really are that bad my guess is a boost leak. check everything between the turbo and manifold for leaks

 

[SallySpeed3]

if your trims really are that bad my guess is a boost leak. check everything between the turbo and manifold for leaks

Are you referring to my trims or zakas?

 

[8.5MS3]

Are you referring to my trims or zakas?

both

 

[SallySpeed3]

Well I checked all my tubes and connections to see if there was a leak. None that I can tell. I tried calibrating my MAF according to what cobb says to do, although I didn't do the 50 mile city drive, it was more like 20. From what I can tell so far my idle is staying around 0 which is great. But now I'm anywhere from +2 to +7 while driving, but thats alot better then before. Just think it's odd that now I'm positive, but we'll see where things settle, I've only put about 10 miles on this map.