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I made some changes to the other tune and took it for a short drive around the block and attached the scan i got.
It seems like its commanding a lot of timing even though i have the timing tables...

Im using the factory ZL1 LSA 3 bar sensor P/N 12592525
I just changed the linear and offset to 312.5 and -11.25 respectively. Apparently i had those wrong.

I have an AEM wideband and it...

I recently had some engine issues with my 5.3, so i decided to upgrade to a 6.0 and add a LSA supercharger while i had it apart.
I was able to get the N/A 5.3 dialed in fairly well, but i am a...

I wonder if my having my idle set at 650-675 is too low causing this surge? I had it at 700 for this tune and scan but didnt seem to help.
I have also never tried RTT so ill have to give it a shot...

Im going insane chasing an idle surge issue.
I know that this is probably something stupid and simple but i cant figure it out.
The surge occurs when i am rolling in drive at very low speed or...

here is my ECT spark base table
74404

But im not sure about the MAP sensor. I dont know if you need a specific 3 bar sensor to run properly or not. I have never messed with boost.

Here is a...

I think I cant compare like i want to because yours is a 3bar SD tune and mine is not.
Are you running boost?
Did you change your MAP sensor from the stock one?

Sorry to sidetrack for a second, but does anyone why are some of the tables greyed out when i compare this tune to a stock 2004 silverado tune or my stock 2002 tahoe tune?

Have you checked for vacuum leaks? You dont have much vacuum at idle. My truck with a similar cam has a lot more vacuum at idle.

My cam is a TSP 212/218 .550/.550 112lsa cam and my MAP is...

Also, what size cam are you running?

For some reason you are getting Knock Retard at idle. as soon as the KR decays, the timing comes in the idle jumps to ~700.
I also agree with above, Set the MAF DTCs P101, P102, P103 to MIL on...

Can you post a log when it does this and the tune your currently running?

Ill look into trying to drop the PE to a lower RPM and see how it runs but i believe with my delay being set to 0 and PE set to specific TPS numbers. Shouldnt it come in when the TPS reaches that...

Copy, Thank you again for the help!

Let me know if this looks better.


I made those tweaks and added the PIDs for KR, Burst Knock and Injector Pulse.

This thing feels like a whole new animal with the AFR better. Thank you!
...

Thank you!!
Ill give it a shot and post back when i have results.

Ive been learning and playing around with tuning my 2002 S10 Blazer with a 5.3 and 4L60E.
I wanted to get some input of how this tune looks and where i should work on it more. The truck runs and...

Well i was definitely reading that previous tune wrong and was mistaken that the high and low tables were mirrored. Yay for learning and looking like an idiot at the same time.
I did go back to a...

Hi im a complete newbie but i want to learn. I have been reading many of the threads, stickys and quite a few youtube videos.

My truck is a 2002 S10 blazer with a 5.3 and 4l60E from a 2002 Tahoe...