fuel trims on stock 2002z28
05-30-2010, 11:35 AM
#1
TECH Enthusiast
Thread Starter
Join Date: Jan 2005
Location: wisconsin
Posts: 658
Likes: 0
Received 0 Likes
on
0 Posts
fuel trims on stock 2002z28 at 55 on hiway long trims at -11 on both banks and -6 on both banks
at wot is this right, only real change was timing table and cutout open. thanks
at wot is this right, only real change was timing table and cutout open. thanks
05-30-2010, 02:25 PM
#2
LS1Tech Sponsor
that's too rich...
at part-throttle, normal driving/cruising, at 1800-2000 rpm, you want the LTFT's to be about 0 to -2....
at WOT, the fuel trims aren't used anyway.. unless they're positive (at which point the pcm will add fuel on top of the PE fueling table), which you don't want - hence the reason to get them slightly negative during part-throttle normal driving...
at part-throttle, normal driving/cruising, at 1800-2000 rpm, you want the LTFT's to be about 0 to -2....
at WOT, the fuel trims aren't used anyway.. unless they're positive (at which point the pcm will add fuel on top of the PE fueling table), which you don't want - hence the reason to get them slightly negative during part-throttle normal driving...
__________________
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06MonteSS / DiabLew Tune
2014 Camaro 2SS/RS - LS3, 6-speed manual, short-throw performance shifter, NPP dual-mode performance exhaust, 1LE front splitter, ZL1 rockers, Z28 Rear Spoiler, all paint-matched Red Rock Metallic, BMR strut tower brace, Cold Air Inductions cold air intake, Apex Motorsports, Inc. catch-can, Custom DiabLew Tune
www.diablewtune.com -- www.diablocustomtune.com -- www.diablocustomtunegm.com
06-01-2010, 07:27 AM
#4
On The Tree
Join Date: Sep 2007
Posts: 198
Likes: 0
Received 0 Likes
on
0 Posts
