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Ran a scan today and found the 1-2 selenoid was on until it started to warm up and as soon as it went to off the trans went right into reverse like it should.Anyone know why it would be commanding...

2001 Silverado 2wd with newer 4l80 swap.Did the swap and everything functioned as it should.Rebuilt same trans with the Jakes Performance kit and now I have a strange issue.On cold starts trans acts...

01 Silverado with a turboed 53 just did the 4 L 80 2 4 L 60 swap already had the 2bar OS running off map deleted the mass air flow. Every time I try and do the segment swap to a stock 4 l80 tune it...

Now it wont let me do a seg swap with the tune I found in the repository,do I have to license it?

Lol in your world Im sure that is true,I will try seg swaping from the 3 bar OS tune out of the repository and see how she goes.

Lol in your world Im sure that is true,I will try seg swaping from the 3 bar OS and see how she goes.

yes I am,3bar os for turbo,so...i need to use the og tune for my truck before i modded it for boost?then how do I get my tune back?Can I do the 3 bar Os mod to the file with the 4l80 data and then do...

Downloaded a stock tune with the 4l80 trans data and did the segment swap,trans tune swapped just fine but somehow all my ve table ect is getting Fd up in the process.Wth am I doing wrong?Anyone seen...

found this tune in the repository,any opinions?
001 Chevrolet Silverado
Engine: 5.3 V8 - Automatic
Submitted By: Chris Johnson
99 truck, 01 PCM, no cats, no egr, no air, dual flowmaster exhaust,...

Built a 5.3 with https://www.summitracing.com/parts/cca-54-426-11 cam,springs,rods,ect.Motor is installed in an 01 silverado 1500 2wd shorty and running,innovate mtx-l wideband installed in the Y...

Thanx for the info!It fires and runs I just want to be safe.Ill check out Mowtowns course.

Just completed my first LS build,a gen 3 5.3 with a Comp cam ect in a 01 1500 2wd.Im awaiting my HPTUNER pro package from Summit and researching HP through youtube while I wait.My question is...