View Full Version : running rich
derkscustomcars
August 29th, 2015, 09:06 AM
Hello,
Im new to the whole turbo tuning, i have a dyno but not set up yet. i set up a cos with a 2 bar map sensor, that all seems to read ok.
i use the stock ve table and went trough the whole tutorial to set everything up.
it idles at a afr of around 7-8 and when driving its in the same range. if i lean it out a bit it wont idle.
it hesitates when accelerating and i cant go wot.
what am i missing?
Matt
joecar
August 29th, 2015, 04:28 PM
Hmmm, AFR 8 is way rich...
Are you getting an immediate MAF DTC...?
derkscustomcars
August 29th, 2015, 05:25 PM
I would have to check. I will let you know
darcy
August 29th, 2015, 10:07 PM
Does it really only have 21lb injectors in it?
If you have no MAF I would set C2906 to "1"
derkscustomcars
August 30th, 2015, 04:18 AM
for now it does, so it shouldnt be running rich lol. i have some bigger ones on order
i will try that
derkscustomcars
August 30th, 2015, 05:40 AM
http://images.tapatalk-cdn.com/15/08/30/66fd02e9d5560ea2935da8c40b0c748c.jpg
That's at idle. I think I have to setup my lc1
joecar
August 30th, 2015, 07:22 AM
Does it really only have 21lb injectors in it?
If you have no MAF I would set C2906 to "1"Good point... this make MAF fail immediately.
joecar
August 30th, 2015, 07:25 AM
That's at idle. I think I have to setup my lc1
Yes, if you want to see AFR, but for tuning use Lambda and/or EQR...
avoid AFR at all costs...
the correction multiplier is easy: CALC.WO2BEN = {GM.EQIVRATIO} * {EXT.WO2LAM1}
you can get this from the calc_pids.txt file from the Calc.VET thread: calc_pids.txt (https://forum.efilive.com/attachment.php?attachmentid=18747&d=1440722466)
derkscustomcars
August 30th, 2015, 07:48 AM
Thanks guys. That's what I kinda figured now. But no sense doing anymore tuning. The 21lb injectors only support about 330 hp
joecar
August 30th, 2015, 07:57 AM
yes darcy has a good point on your injectors.
derkscustomcars
August 30th, 2015, 07:58 AM
True. But going by my afr it was running rich so I wasn't to worried
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