I'll just start with a 02 Tahoe l59 tune, and do a 4l80 swap.

I have pcm hammer, ls Droid, and tunerpro. Just trying to figure out if I need to start with a flex file and swap in a 4l80e. I think the trans swap is more common.

Thanks for the file, do you know if that file has the flex fuel options?

Change of plans, my trans went out. So as I am changing that, going to put my 24x/cnp, with the tuned port injection. So I'm looking for a bin for a k2500 suburban, any ls motor/4l80 trans with flex...

Hi everyone, been working on a idea for a secondary fuel system. Two fuel pumps, and 16 injectors. Was thinking of using a single output from ecm to trigger a relay for second fuel pump, and power to...

That is what I pretty much figured. I think on my pinout there is wires for 4 hi, and 4 low. Just have to see when I get to that point. But thanks. Maybe some that has done this swap will let us know.

Thanks, got that part, I have the stock bin file, 411 ecu, punouts and all the stuff needed. Only question I have is the 4x4 stuff in the tune. Express vans did not come 4x4. Looking for anyone that...

No, starting bone stock dizzy, spider injectiors, and all. I have another motor with 24x conversation, with a elderblock proflo, with rails and 42 lb injectors.

Hi guys, I'm pretty new to all this . I'm sure it been ask but
What is needed in the ecm to make 4x4 work on a l31 411 swap? It probably as easy as a segment swap, but any help or links to the info...

am looking to do more upgreads later, may do headers soon. doing the 411 upgread for the tunabality right now. and to just learn.

Hi there, I'm another new guy saying hello. Am looking at doing a 411 conversion on my 97 k2500 service truck.