IKnowtheFuture

iTrader: (5)

I hooked my '00 T/A into a scan tool because of a lean bank 1 and 2 code and found my LTFT to be +25%. I think my injectors are about maxed with my .623" lift cam, LT headers, LS6 manifold, LID, and P&P TB, but havent got that code in a while, I used to get it once in a while when i took my cutout off, but now its still on even after clearing it. could it be a vacuum leak?

BLOWNBLUEZ06

iTrader: (17)

could be vacuum or exhaust leak or anything that throws extra oxygen into the exhaust, like an injector not spraying fuel, so the cylinder is just pumping air.

jimmyblue

iTrader: (11)

Could also just be the cam and long tubes, if the
25% is only at idle and low TPS then O2 sensor
heat issues and shot-through air can make it read
lean.

Maxed injectors will only be revealed at the big
end where O2 sensors are ignored and no trimming
goes on (aside from +LTFT "residue", which is about
where you came from, not where you're at).

IKnowtheFuture

iTrader: (5)

I just looked at my fp gauge under my hood. KOEO should sit at about 60psi, i turn the key and it went up to 30psi and dropped back to zero in a second. I cranked it up and its at 27 psi!!!! WTF. is it my FP reg. in the tank?

scites

iTrader: (30)

find out what the problem was? im havingthe same issue with B! LTFT

redtan

iTrader: (5)

Bank specific LTFTs are 99% due to a bad o2 sensor on that side. An air leak would cause both banks to be affected, but if it's just one then it'st most likely the o2 sensor.