Followed his guide, got the short terms off but the long terms are reading 25. What am I doing wrong?
Followed his guide, got the short terms off but the long terms are reading 25. What am I doing wrong?
are you resetting trims each time? Wideband? Using afr error? post tune, log, and cfg along with mod list. No one can help you without that.
2003 Z06
Forged 347
PTE Billet 67/65 Turbos
FMIC / Dual 50mm Tial BOV's
ID 1000 Injectors
RSI Stage 4 Fuel System
07 Z06 Cam
Tripple Nozzle Meth
ACT Twin disk clutch
25# Boost
I wrote it for a wideband only. If you are in the middle of tuning, the STFT and LTFT should be off.
Free HP Tuners Beginners Tuning Guide
LS1 Tuning Guide
Michigan Snowmobiler
1969 Firebird: 11.67@114 [email protected] 1/8 1.70 60 ft. EPS cam 234/246 .602.606 114+3, 6.0 LQ4, L92 heads milled 10.5:1, Ported L76 intake, ported 90mm Holley TB, 100mm MAF, FIC Custom injectors, Hooker LT, PYPES dual exhaust with an X pipe, 4L65e with all of the good parts inside, FTI 4000 RPM Stall, 12 bolt with 3.73 gears. HP Tuner tuned by me
I don't know how to reset trims. I have a wideband (LC1) hooked up to the little grey box.
In the menu bar of the HPT Scanner. Go to Display --> VCM Controls. Tab over to Fuel & Spark. You'll find a button there that said, 'Reset Fuel Trims'... You have to be connected to the PCM else the button is grayed out.Originally Posted by sheikss
Thank you sir.
Out of curiosity, when you don't reset them can they have an impact when your tuning the VE tables? Will the scanner see that the LTFT's are maxed at 25 and give false info?
Do I need to turn close loop and fuel trim learn off as well? I did and it seemed to help.
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