Couple of 2010 Camaro problems...

[JordonMusser]

1) Car won't idle. I am leaning towards it not being a tune issue and perhaps an air leak between MAF and TB. Thoughts?
2) Target AFR changes at 6200, from approx 12.5:1 to 12.18:1. I have played with PE @ this RPM and it actually doesnt seem to do anything? The actual AFR is actually 12.5:1 across.

[DSteck]

What's done to the car?



The commanded 12.18 is from COT protection. Change that number in the field to 1.1744 and you'll never see that happen again.

[Mep_q8]

Just disable the COT protection.. don't think you would have cats if you've got a cam that big..

Make sure RWTD doesn't see your PE tables

Put your RAF tables back to stock.. increase them by 5% at a time till your idle smoothens out.. you've added too much!

Just some advice, 34* might just be a tad too much on an LS3..

[JordonMusser]

heads/cam exhaust (with cats).

not a huge cam.. 230 ish intake, 240ish exhaust.. .600 lift, 111ls.

at WOT I see upwards of 33 at lower RPM and it seems to like it with no knock. then we trail off the timing as we reach peak HP and as long as I stay below 23* above 5200 or so it doesn't knock.

Did some track testing today (road course) and it was fine at WOT, just terrible <1500rpm. Ill fiddle tonight

[JordonMusser]

HA. nevermind, i now know who RWTD is :0

Anyway, the current PE tables are not hosed, I finished tuning the high freq MAF and they are in check now.

[righton]

how about some details about the car, weight, and all mods?

[Sam88gta1]

Try this file. Looks as if the MAF table is way out of whack at idle. Way way lean.

[JordonMusser]

SamIam-
You are right. I obviously slipped and hit a key by accident when I had those lower cells highlighted. I put the MAF table back to stock and retuned it- runs perfectly. Wish I had seen your post sooner, but i guess figuring out on my own is the best way to learn

Thanks again for the help and all that. I am sure I will have more questions.