I am having some trouble with doing a engine segment swap to allow a flex fuel tune to run my truck.
I've done a lot of research on the subject, but have found very little information about people who have succeeded in doing this swap. And the people who have been able to get it to work have posted very little to no information about how they were able to get it working.
I have a 12579045 OS on the original 03 S10 P59 PCM. I found a flex fuel tune from a 03 Tahoe that I could use to do the engine segment swap.
Attached are the tunes.
MyTune003 - Current tune I am running
MyTune003_Flex Fuel - Tahoe Engine & Engine Diagnostic segments swapped and all parameters updated to match my current tune
03 Tahoe 5.3L Flex - Tune I used for the engine and engine diagnostic segments
I also attached a picture of the DTC's I got when running the truck.
After flashing (Write Entire) the segment swapped tune it sounds like it is not running on all cylinders and there is a large difference between bank 1 and bank 2 fueling. I then flashed it back (Write Calibration) and the P0315 DTC still showed up, but ran normal. Then after doing another flash (Write Entire) with my current tune it runs just like before.
I'm really just looking for any help from someone who has done this type of swap. I could go on and on about all the research I have done on this, but a lot of it is not very detailed so it has not provided much help.