Is there any way to run the car in OL just while WOT so the trims will not affect the AFR ?
Is there any way to run the car in OL just while WOT so the trims will not affect the AFR ?
EFILive Tuner
Um, isnt WOT always OL? Yes the PCM/ECM applies LTFTs, but it wont trim based off the O2s.
Look at Swingtan's VVE adjustment tutorial, it outlines what tables need to be adjusted to disabled LTFTs and STFTs.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
I know how to disable the trims but i don't want to disable them all the time just at WOT if this possible
EFILive Tuner
when you go WOT it will go into OL and if you have LTFT enabled it will add the % of LTFT to the end result. E38 will add and take LTFT from total WOT.
Ok thats what i'm asking about
is there any way to disable LTFTs in E38 just at WOT ?
EFILive Tuner
not sure on that one i always disable LTFTs and leave it disabled, but if you get your VVE or maf spot on LTFTs should be within +or-1% so it wont make bugger all difference at WOT
In FI cars with bigger injectors and aftermarket cams some time the LTFTs will be around -+2% or 3% and that will make a big difference and could risk the car so i want to disable it at WOT
EFILive Tuner
The E38 WILL NOT go OL at WOT, there is no "semi-OL" like we get in the LS1 COS3/5.
What the E38 will do is go into PE mode, if the correct conditions are met, or it will stay in normal CL mode.
To prove this, look at the OL fueling tables. The settings here are not used any time the engine is in CL or PE mode.
If you are concerned about WOT mixtures, get your fueling correct and run CL STFT only. The E38 will generally correct +/-25% with just STFTs , but you should get them within +/- 5%. If you get the fueling right to start with, LTFT can be safely turned off, but you need to ensure you get the rest right. This includes IAT, charge temp and barometric corrections.
Simon.