OK I’m pretty stuck on this one. My buddies 2002 GMC truck with a 4.3 vortec was giving problems where it would stall and run bad. Logged it for a quick drive and the fuel trims were very lean 18-20%...
Type: Posts; User: 1fstgto
OK I’m pretty stuck on this one. My buddies 2002 GMC truck with a 4.3 vortec was giving problems where it would stall and run bad. Logged it for a quick drive and the fuel trims were very lean 18-20%...
any one know what the formula is for the afr error pid? I would like to try a few things in excel and see how it works.
ok ill give it a shot tomorow when its not raining.
now in the top areas i did some testing and basicly pasted 25 degrees across the board all the way down to .32 g/cyl and it logged 42 where there are 46's in that one. sorry i didnt save that one...
heres the log when i made 413. ive never put a 2bar os on it before. i never have put any os on it. unless it was changed when i paid to have it tuned about 3-4 years ago before i got hptuners.
oh and .44 g/cyl is about the highest it gets even at wot
and the table exported from the editor if it helps.
now i did notice one thing from one of my logs. it seems the commanded timing and acual timing become farther off as my tps% increases.
12587604 is the OS. Should be the factory one. Its not a hptuners SD OS and i thought when you SD with out the OS you loose the use of both octance tables. heres a screen shot. and im using beta.
here it is. sorry it took so long work is crazy this week. drove the car agian. feels like a rocket compared to before. and by the way i use only the low octane table being i never used a SD OS.
For those who are wondering it’s a stock cubed LS1 with the following mods.
Comp cam lift 581 588 duration 224 230 lsa 114
Heads are 243 ls2/ls6 castings with factory 64cc camber size cnc’d 2.055...
program the lm2 for a afr 10-20 at 0-5 volts and choose the lm1 preset or leave the lm2 at a factory setting and choose the lc1 preset. mine works both ways. the lm2 and lc1 have the same factory...
Coming up this weekend im going to be helping a friend of mine tune his 6.0 gto for the first time in mafless speed density and I was going over the different charts since my gto is a ls1 there a...
found this on another site. i have a few of GB's books but not his video so i was wondering what others had to say about it. I searched and didnt see anything on here like it so here it is. worked...