LTFT Sanity Check
LTFT Sanity Check Am I correct that if I record LTFT values of 6 at WOT the computer is adding an additional 6% fuel? <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
On The Tree
Joined: Jan 2003
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From: Central MD
Re: LTFT Sanity Check Incon TT, you need to get in touch with Elmer Boggs From Jax, FL on LS1.com He is a moderator there and has the 1st incon. You are running 6% lean most likely due to that crazy TT induction you have there.
Re: LTFT Sanity Check Don't sweat it. LTerms are just an indication of the PCM's adjustment to fueling to bring it back on track.
6% just means that your computer had to add 6% more fuel to put the a/f ratio back where it is supposed to be. You are not rich or lean, your car has made the necessary adjustment to fueling on its own.
This is why our cars have LTerms and adjust themselves. LTerms (how much your car corrects itself) change all the time.
I just dynoed a stock car this morning that held 6% LTerms all through WOT.
You are fine, don't sweat it.
To get a good indication of whether you are running lean or not, you need to put it on a dyno and check the a/f ratio with a wideband.
Good Luck,
Kevin
6% just means that your computer had to add 6% more fuel to put the a/f ratio back where it is supposed to be. You are not rich or lean, your car has made the necessary adjustment to fueling on its own.
This is why our cars have LTerms and adjust themselves. LTerms (how much your car corrects itself) change all the time.
I just dynoed a stock car this morning that held 6% LTerms all through WOT.
You are fine, don't sweat it.
To get a good indication of whether you are running lean or not, you need to put it on a dyno and check the a/f ratio with a wideband.
Good Luck,
Kevin
Re: LTFT Sanity Check Your LTFTs and STFTs have to BOTH go overlimit (23% and 5% respectively) at the same time for the PCM to say you have a problem and set a DTC. 6% LTFT? Bill Clinton inhales that much in his cigars.
11 Second Club
Joined: Nov 2001
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From: Hanover MD
Re: LTFT Sanity Check </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by eallanboggs:
<strong> Bill Clinton inhales that much in his cigars. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">i didnt know he inhaled, i thought he put them other places.... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[worship]" title="" src="graemlins/gr_hail.gif" />
<strong> Bill Clinton inhales that much in his cigars. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">i didnt know he inhaled, i thought he put them other places.... <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" alt="[worship]" title="" src="graemlins/gr_hail.gif" />
