Vortec to 0411 swap and info thread!

[Fast355]

Yes, But it would be "BEST" to install them when you get the chance. If you get a P1336 code for the Crank Relearn Procedure, you will need those 4 wires hooked up to do the relearn. You can cheat and jump a couple of wires for the relearn---But it is best to hook them up.

Jeff

I did not have to have them hooked up to do a Crank Relearn and still do not have them hooked up. In HP Tuners you have an option for a P/N switch, just choose NONE and it will use the internal switches in the 4L60E. My Idle speeds respond perfectly and the ECM knows which gear it is in.

[EagleMark]

Well that would take out the hardest part of the swap! Fat chance of getting EFI Live to add anything, but if we had a disassembly we could write a CAX file to add the parameter? You know of any LS1b dissasemblies started?

Haven't looked to see if TunerCat has this option?

[Lextech]

Haven't looked to see if TunerCat has this option?

Tunercat does have that parameter. I always tell people to hook up the 4 Trans Range wires because I never know what software the vehicle may be tuned with and it saves headaches on my end.

Jeff

[Buzz]

Agreed - Tunercat has this parameter - at least for some Gen III OS anyway. See attached PDF as an example ...

[EagleMark]

I'd have never run them wires if I did not have to...

Here's the hex address... CAX file for EFI Live or whatever in HP TUner! 0x1E5C2 Gear Indicator (0=None 1=PRNDL 2=P/N)

Or just open all the 0411 tuns, make them bins, fix them in TunerCat and POOF! No more wires...

[Lextech]

I'm curious How or even IF that would affect the ""Crank Relearn Procedure".

Jeff

[EagleMark]

I forget if I ever did one? Or did I do it with EFI Live V2? How does a manual trans do CRP?

All I really know about CRP is GM tech of how it's done and then a 50-50 split of if it is needed and then it's only to fine tune for misfire detection?