LS1TECH - Camaro and Firebird Forum Discussion

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- - LTFT aren't moving on atap (https://ls1tech.com/forums/pcm-diagnostics-tuning/90978-ltft-arent-moving-atap.html)

theblur98ss

Aug 3, 2003 09:25 PM

LTFT aren't moving on atap

Working on tuning my car and now my LTFT won't move. They just stay at 0. Before they would bounce up and down some as I drove. Any ideas? I tried disconnecting the battery but still the same thing.

WS6 GreeN

Aug 3, 2003 10:32 PM

Re: LTFT aren't moving on atap

Does your Fuel Trim Cell change to 22 if you just press the gas a little? Your computer may be in a kind of safe mode for some reason. Thats the only time mine (LTFT and STFT) stayed at 0. Just a thought. You gettin' any codes?

ss_girl

Aug 4, 2003 09:10 PM

Re: LTFT aren't moving on atap

There are two O2 sensor codes. Bank 1 heater circuit and bank 2 switching inactivity I think the codes are. Are the sensors shot?

WS6 GreeN

Aug 4, 2003 10:20 PM

Re: LTFT aren't moving on atap

It sure sounds like it. If you're gettin inactivity then yes, if you haven't unplugged the sensor recently for some reason I would say its shot. Probably the other one too.

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