Autotap/MAFT/LTFT help please!
Thread Starter
Launching!
Joined: Nov 2001
Posts: 219
Likes: 0
From: Westminster, CO
Autotap/MAFT/LTFT help please! I recorded some log files for ltft and got some results that I didn't much care for! The car seems to be overly lean at part throttle, but almost perfect at WOT. The one thing that I really didn't like is in the afternoon when it was close to 100F outside, I 23 occurenences of KR, but not at WOT. So anyone have suggestions? From reading the ltft I'm thinking I should add at least 2 clicks rich on the part throttle, but should I lean out 1 click on WOT? Or maybe just leave it, I'm going to hit the dyno tomorrow so I wanted to aim for pretty good before I get on it and then see what the A/F probe says.
In the morning I got:
LFTF B1 11.53934
LFTF B2 9.056004
Avg 10.29767
O2 B1S1 .919783
O2 B2S1 .914783
Avg .917283
In the afternoon I got:
LFTF B1 10.13394
LFTF B2 7.116228
Avg 8.625087
O2 B1S1 .896053
O2 B2S1 .880921
Avg .880921
In the morning I got:
LFTF B1 11.53934
LFTF B2 9.056004
Avg 10.29767
O2 B1S1 .919783
O2 B2S1 .914783
Avg .917283
In the afternoon I got:
LFTF B1 10.13394
LFTF B2 7.116228
Avg 8.625087
O2 B1S1 .896053
O2 B2S1 .880921
Avg .880921
Re: Autotap/MAFT/LTFT help please! Your 02s look good. Most will say that .88-.91 is good for the 02's.
Your Ltrims could stand to be richen a little if you are getting KR. But is really KR or are you getting a false reading? What type of gas are you running? Obviously if you are running a low octain gas that could be your problem. If you are talking about in the morning cooler weather no KR and than as it gets hotter you are getting your KR, try richening it up. But try 1 'click' at a time. Try some higher octain gas may help also.
Good Luck
David
Your Ltrims could stand to be richen a little if you are getting KR. But is really KR or are you getting a false reading? What type of gas are you running? Obviously if you are running a low octain gas that could be your problem. If you are talking about in the morning cooler weather no KR and than as it gets hotter you are getting your KR, try richening it up. But try 1 'click' at a time. Try some higher octain gas may help also.
Good Luck
David
