zrater

-25 as ltft means its at its peak to compesate for leaness right. scan
tool shows one bank at -25. bad o2 or is it that lean. po174... thanks

bmfcamaro

iTrader: (1)

if its one bank it could be the o2 itself being bad. you can check them using hptuners in the scanner. just use the chart display and watch your o2's they just fluctuate pretty rapidly. if you have a lame one you found your problem.

SSpdDmon

iTrader: (10)

-25 means you're really rich if it's a true reading. It's saying there's too much fuel, so we're going to subtract 25% to try and correct it.

TAQuickness

iTrader: (28)

you might also want to swap the o2's around to see if the problem follows

Billiumss

iTrader: (11)

Good tip!!