Negative Ltft Bad?
04-04-2007, 05:52 PM
#1
Negative Ltft Bad? my ltft is 3% leaner on bank one than bank 2 most of the time. so i set most of the trim cells to be negative so when i go into wot it zeros out. most of my trims will be -3 for bank 1 and -6 for bank 2 but can go to -6 for b1 and -10 for b2 in non decel. what kind of problems can come up if say i make the trims -10 all the time?
04-04-2007, 05:57 PM
#2
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It's not bad. I could be a little better, but nothing to sweat over. A 1~3% swing between banks is normal. A new pair of O2 sensors might help keep the swing to a minimum. But, the passenger side is usually a little richer than the driver's side.
04-04-2007, 07:12 PM
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A slight difference in the 2 banks is ok. You want your LTFT's to be negative rather than positive. The zeroing of LTFT's at WOT is exactly how you want it.
10-30-2007, 09:59 PM
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You would want to know why they are needing correction,
it could be one of several things and not all are properly the
computer's problem.
You should scan more than you tune. Like measure twice,
cut once.
it could be one of several things and not all are properly the
computer's problem.
You should scan more than you tune. Like measure twice,
cut once.
