How to log Flex Advance P01?

[kyotey1693]

I recently switched my f-body P01 to run the 12216125 os from an 02 Suburban and can't figure out how to log Flex Advance. I read something about a custom PID but I couldn't find anything additional. Does anyone know how to log it in the scanner?

[village_idiot]

Post your tune file. It's most likely not fully activated in the correct way. If it was, "Flex Fuel Advance" would be a channel available to you.

[kyotey1693]

What's the correct way to fully activate it?

FT9.1.hpt

[Matt Vardaman]

I recently switched my f-body P01 to run the 12216125 os from an 02 Suburban and can't figure out how to log Flex Advance. I read something about a custom PID but I couldn't find anything additional. Does anyone know how to log it in the scanner?

The flex fuel advance clearly works on my PO1, but I haven't found a way to log it other than the comparison between base advance and spark advance SAE. You can log it easily with a P59, because the PID is there. My high octane spark map is calling for 22.1 degrees and the flex advance is adding the additional spark to make the total 25.8 based on 45% alcohol content. Hope this helps...

flexadvance.jpg

[village_idiot]

All looks good in the tune file. Go to your scanner, and Add Channel > Keyword... Type in "Flex" and see if "Flex Fuel Advance" pops up

I've got a generic Gen 3 Channel List I use, and if they're flex enabled, it always pops up on mine. If not, that channel will go away as a broken link when I start scanning

[kyotey1693]

The flex fuel advance clearly works on my PO1, but I haven't found a way to log it other than the comparison between base advance and spark advance SAE. You can log it easily with a P59, because the PID is there. My high octane spark map is calling for 22.1 degrees and the flex advance is adding the additional spark to make the total 25.8 based on 45% alcohol content. Hope this helps...

flexadvance.jpg

Thanks man. I agree, mine is working too, I just don't understand why we can't log the PID since it's enabled in the tune.

[kyotey1693]

All looks good in the tune file. Go to your scanner, and Add Channel > Keyword... Type in "Flex" and see if "Flex Fuel Advance" pops up

I've got a generic Gen 3 Channel List I use, and if they're flex enabled, it always pops up on mine. If not, that channel will go away as a broken link when I start scanning

For some reason it doesn't on these. I know someone had a workaround for it but I can't find the info on how to do it. This is all that it shows when I type in flex.

Screenshot 2022-11-23 223254.png

[village_idiot]

I guess if you REALLY want to be able to log it, and have a more advanced OS, I would snag an 04 to 07 Express P59 and use it. They were still DBC and have the IAC drivers on the board you need.

[anniversaryss]

I dont get it either