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New super low mile car? Isnt there a 500 mile break in in the ECM?

Either underhood fuse block or ignition switch. Since it starts after a hour, I would aim at the fuse block.

Finally had it dyno tuned. Tuner used my base and worked off of it. Way more drivable now. Made 398hp/392tq to the rear wheels through 6l80 and transfercase on Wawa gas.

Sounds like the transmission is getting worn. Sounds like the 2/6 and 3/5/R clutchs are having a hard time holding on. Have you checked fluid condition?

Well, Ive had it running half decent up until today, I've installed the headers. On cold/warm starts it'll start, idle will drop, either stall which happens most of the time or pick the idle back up...

Well I couldn't sleep last night and fiddled with it some more. I got my long terms and short terms closer and its not as lean. Can I trust the O2sensors with those numbers being accurate? Im all set...

Thank you for that link. I'll set up those graphs. Also I know I should really invest in a wideband, If I cant make it to the dyno shortly after the headers are on, I'm going to order one. I hope my...

I have 2012 Tahoe, I've recently swapped in a L94, basically a drop out from an Escalade. Truck also has a TSP 225/236 .629"/.615" 114LSA camshaft with upgraded springs and retainers, ZL1 torque...

Actually, I will be looking ZL1/CTSV injectors since I have a blower for the truck that I am still collecting parts for.

Thank you guys for the help. I'll probably pick up a set of flex fuel injectors soon. Should I be able to just copy over the injector control settings from a flex fuel truck? I'm pretty sure flex...

Haven't got the wideband yet, Ordered it, playing the waiting game.
From what I've read, I could use the O2s and want to be around .900 but I know thats not 100% accurate with narrowbands.
How can...

70588

Heres the WOT with the adjustments and more logging channels

Thank you! It just clicked in my head. I had to change PE EQ ratio down using that chart I found. It makes sense now. So basically, I was adding in too much fuel in PE. Correct?
I added those...

Thank you for reminding me to add those to my logs. I also fixed the PE and the cylinder volume.
I am having trouble understanding stoich AFR. I found a chart here...

Well after playing with it alot, it runs great but is still a dog down low, will barely chirp from a stand still to WOT. Im pretty sure at this point, its basically the stock convertor holding me...

Thank you guys, i'll add that stuff to my logging. I figure out my bank two lean was my header bolts worked loose. Back to running better, I'll log some more and report back.

Thank you, I'll give that stuff a try. Now after logging some more, it is super duper lean. mostly at idle. Im not really sure where to go with it. I'll keep doing some research, but at this point it...

Finally got my truck together and running. Im working on the tune myself with no prior tuning experience.
Truck details:
5.3 10:1 compression
Long tubes, xpipe
Comp cams 222/224 .566/.568 112LSA...