Log

[crt013189]

hey i just got hp tuners today and i have been playing around with the a/f ratios and stuff nothing to big yet i was just wondering if this log file i have here is dangerous or not dangerous can someone let me know thanks

[Bill@HPTuners]

Trims are trying to add a ton of fueling.

You should strongly consider logging commanded afr.

Definitely got some tuning in front of you

[crt013189]

how would i do that because when i am idling my a/f gauge jumps all over the place and sometimes even maxes out it usually goes from 14ish to 20 and sometimes oven higher so how would i go about fixing that

[Bill@HPTuners]

is it a wideband?

[crt013189]

yeah its a aem wideband and btw i got a 07 chevy cobalt supercharged with stage 2 and a 2.9 pully

[Bill@HPTuners]

weird, under normal circumbstances you should hover around 14.5-14.9:1 just sitting there idling. Wonder if you have a leak(intake or exhaust) somewhere causing not only your high fuel trims but your wideband reading super lean.

[crt013189]

well i mean my wideband even when im idling and normal driving it bounces everywhere but it usually stays around the 18 19 range does that mean i have a leak or something i very new to this so all help is appreciated

[Bill@HPTuners]

I would tend to think theres something going on there, mine stays rock solid at 14.6-14.8:1 until I enter pe for the most part.

[crt013189]

ok so what are you suggesting that i have a leak i will check for leaks and see if that solves the problem but here is my tune file to see if there is any problems with it just because i have a feeling that the problem is in the tune not in the car but you know more than me so let me know thanks

[Sunburst_SS]

what does your gauge read for vac. at idle??? you should be seing between 18-22 in. hg. vac. at idle. Posibility that when the stage kit was installed that there is a leak around the injector o-ring of the supercharger. Just things to check. Always a good idea to make sure the vehicle is mechanically sound before attacking the tune.

[crt013189]

it reads around 20 except when the air is one then it reads around 12 to 15 so you are thinking it might be a fuel leak if its not that what else would it be so i can take a look at it when i get home thanks

[crt013189]

ok well i checked all spot that there could be a leak supercharger injectors exhaust etc and everything is all tight now and now my a/f gauge is reading around 14.6 to like 15.2 it doesnt move around as much as it did so what do i do from here to get it to stay in that nice 14.7 while cruising and at idle would i have to tune the VE let me know thanks again

[TotheNthRPM]

our cars dont really use the ve table all that much. mainly maf. log commanded vs actual error %, i forget what its called exactly someone else can probably chime in on that one for ya.