Looking for 4L80 on P01 9360361 OS

[Pwarner]

I am looking for a tune that's running a Camaro/Firebird 9360361 OS and a 4l80 so I can segment swap the trans segment in.

Thanks

[Bill@HPTuners]

I don't think GM ever made a 4L80 calibration for this particular operating system.

This gets discussed every few months https://forum.hptuners.com/showthrea...hlight=9360361

[blindsquirrel]

https://www.pcmofnc.com/product/pcm-...rsion-harness/

[Pwarner]

I don't think GM ever made a 4L80 calibration for this particular operating system.

This gets discussed every few months https://forum.hptuners.com/showthrea...hlight=9360361

Okay let me get your take on this Bill.

Everyone seems to suggest the 12212156 OS. The car is a 99 Firebird LS1. I found a 02 Firebird LS1 with a 2156 and a 02 Silverado with a 2156 and a 4L80. I segment swapped Transmission and Trans Diagnostics. Now when comparing this new segment swapped tune to the one I read from the 99 Firebird, and looking at the engine portion there's a lot different notably and interestingly the firing order.

Do you suggest going thru all the highlighted parameters that are different and changing them to match the 99 Firebird tune? The remaining segments of course are not the same anymore.

[Pwarner]

Bump still looking for feedback on my approach from above.

[2xLS1]

If you will notice the firing order is the same, it just starts with a different number. That is also just used for the misfire diagnostics. I ran a 02 F-body calibration in my 99 F-body for years. You just have to tune it for the small differences that a 99 had vs a 02. Injector size being one.