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Throw this tune in and take a data log of some idle time and if you can get some driving data then get some. I dont see the point in tuning VE right...

Updated MAF curve.

whoever wrote that part does not like the flow of that blower or that manifold very much might be spot on just like it is - i dont know

Well crapo. I wonder if there's any software that would show us what they changed. I know they become a real pain to have everything right after the...

what does that mean?

If mechanically OK next logical step would be injectors. Swap banks 4 to 4 and see it the problem migrates from side to side. On the other hand...

i believe i have addressed the vacuum leak, let me know if you can make any edits to this to improve! i have 42lb injectors i am waiting on the...

Your OL is not ready, trims not working. spark goes to -3...a lot need to be done. Hit me up if need good base.

Log torque source

Car is a 6-speed manual 2007 Z06. I have returned most of the car back to stock including exhaust manifolds, intake & throttle body. Only engine mod...

I would suggest to log knock aswell. when getting some of these logs, i like to get the following once at operating temp, idle time regular...

not sure what you mean as the wider lobe separation that is ground into the 392 cam will help a heavy truck and as with any engine you determine...

Mechanically it's perfect. I've gone over it several times.

I’ll take a step forward since I’m just looking to get the car fixed and apologize for my confusion. Im passed the basic checks and I feel like...

Bank to bank will show some variance and is normal. However, if there is a significant difference, you will want to look for vacuum and exhaust...

Well that certainly clears things up.

Cylinder 2 and 4 share a common power source. Did you check for 12v at violet w/blue stripe on term 4? Check for good ground on terminal 1 black...

send me the label of the ecu !

I run 4.9 beta and 4.8 stable with no problem

Driven/Drive=ratio 37/33=1.1212... So your ratio is 1.12 Easy way to get it in your head is if the drive is smaller than you go slower. If you go...

Using torque adder tables to change the shift timing, I was able to achieve the hardness I wanted. Restored stock pressure to a large extent while...

After more troubleshooting, it looks like the coils on 2 and 4 aren't firing. However, when they move to new locations, they fire fine. I don't...

That did the trick brother appreciate it

sorry. new to hp tuner. use holley. this yukon has just a btr naturally aspriated cam and exhaust

Change your minimum DC to 60% everywhere and see what it does. You can see your DC go to 60 then drop to 50something right where it drops off. You...