running rich

[derkscustomcars]

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]

Hmmm, AFR 8 is way rich...


Are you getting an immediate MAF DTC...?

[derkscustomcars]

I would have to check. I will let you know

[darcy]

Does it really only have 21lb injectors in it?

If you have no MAF I would set C2906 to "1"

[derkscustomcars]

for now it does, so it shouldnt be running rich lol. i have some bigger ones on order

i will try that

[derkscustomcars]

http://images.tapatalk-cdn.com/15/08/30/66fd02e9d5560ea2935da8c40b0c748c.jpg

That's at idle. I think I have to setup my lc1

[joecar]

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]

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]

Thanks guys. That's what I kinda figured now. But no sense doing anymore tuning. The 21lb injectors only support about 330 hp

[joecar]

yes darcy has a good point on your injectors.

[derkscustomcars]

True. But going by my afr it was running rich so I wasn't to worried