Convert 2000 F-Body OS to a Flex Fuel OS?

[coctostan]

I'm confused about what is possible with OS swapping and custom OS's. I would like to run the GM flex fuel sensor on my 2000 F-Body PCM. Is it possible to load an OS that offers the flex fuel table onto my PCM?

If that is not possible, could I swap a PCM and wiring harness from a Flex Fuel vehicle?

[coctostan]

Did I post this in the wrong forum?

[joecar]

No... anyone who knows hasn't yet seen this thread.

[coctostan]

Cool. I was just making sure. I'm not too familiar with this forum or EFIlive for that matter.

[coctostan]

Bueller?

[mr.prick]

How to run your LS1 on E85

I don't think there is an OS that will fit in the 516k 411 PCM for flex fuel,
it's either one or the other.

[coctostan]

OS 12216125 from the L59 motors in 2002 Silverados and Yukons (and a few others) is a 512k OS and it has the Flex Fuel tables that use the sensor.

Would I be able to simply load that OS (and update fuel/spark tables, etc) or would I need to rewire everything? Anybody know where I can find wiring diagrams for different models?

[mr.prick]

I just looked over a 12216125.calz but all the flex options are empty.
If you have a file with values try using that with the sensor.
A few OS' have things that are not used i.e. lean cruise,
finding values to start with may be hard to find.

[coctostan]

I downloaded this one: http://holdencrazy.com/EFILive/TuneF...012216125).tun

It has the params table under "B3101 Engine Calibration/Fuel/Flex Fuel" and the stoich conversion under B3101.

I also compared pinouts between the 2002 5.3l and the 2000 5.7l and they are very similar. Maybe 8-9 pin differences (excluding EGR stuff which I don't run).

Is it as simple as loading this different OS onto my PCM and then wiring in the sensor? I'm new to EFIlive.

[GMPX]

No you can't just load that in. Each calibration is specific to a platform, eg F-body won't work in a truck (there is more to it than spark and fuel tables). Don't even bother trying.