2008 Chevy 5.3 e38 turbo help

[56gmc]

Never figured it would be so different to turbo a e38 ecm dose anyone have any advice on how to tune your fuel or if there is a way to open up the factory supercharger option? any help would be awesome thank you. :ermm:

[minytrker]

I normally tune virtual ve first and then the maf. Those are the tables controlling your fueling.

[joecar]

+1 VVE and MAF to correct the airmass/airflow as Lorenz said.

Then you have to set PE fuel.

[56gmc]

Do I need to get a 2 bar map

[Happy Jim]

Do I need to get a 2 bar map

Yes (or bigger depending on your target boost levels)

Jim

[joecar]

And, E38 tune file allows you to select VVE for 1-bar, 2-bar or 3-bar.

[56gmc]

I was looking at the ve I was just hoping the factory was good but oh well. What years of map sensors will fit 19332

[56gmc]

I'm also having a little bit of a problem letting go of the maf my buddy helping me tune wants to cut it from the team

[joecar]

See post #83 here (read those 2 docs): https://forum.efilive.com/showthread.php?8961-E38-VVE-Setup-Guide

[56gmc]

Wow good read thank you I keep seeing stuff about a cobalt ss map is a 2 bar will that work on my 5.3

[joecar]

Yes, Cobalt SS 2-bar MAP sensor.