C5 Flex Fuel Help with os 12216125

[Neukom720]

Hey guys kept my factory C5 p01 896 PCM as a working backup and installed a p01 0411 with flex fuel os 12216125 from a 5.3L sierra with flex fuel active from factory. I then manually moved all my OEM C5 parameters over to the new flex fuel OS. Used program to change 2002 12216125 os to my 99 C5 VIN, Removed VATS and it starts but runs terrible, throttle barley responds, abs message, traction message, and charging messages coming up on the DIC but checked with multimeter and is charging maybe even slightly to high of charging. My question is, in the system options I removed everything under the gmt800 and turned on all my options under platform Y which is the Corvette, was I suppose to leave GMT800 selected and just select all my Corvette options in the GMT800 row? My factory file i believe said GMT530 so I selected that and did everything under the "Y" platform options. Any help would be awesome thanks guys
-Kyle

[kur4o]

You need to find a 2002 vette bin with OS 12216125, for base file, Than apply the flexfuel patch.
There is too many parameters that are not visible in bin, and it is not possible to copy all of them.

It is also possible even with 2002 vette bin to get various DIC issues or issues with other modules.

Do you have the stock c5 file to share.

[Neukom720]

When I get home I can share my 99 c5 stock on file if you would like. I don't know of any 2002 c5 that cam with os 12216125 that's the problem. I have 2 - p59 PCM's out of express vans and a tune I've been quietly working on in the background based on os 12587603 because the 2004 Corvette cam with this tune and there are the same OEM os's with flex fuel active you can use universal patcher to add it to a Corvette based 12587603 os with flex fuel patch and that same os tune I've been working on I've already inserted my 99 Vette VIN. So you think just going straight to the p59 PCM and switching the couple wires I need to is my best course of action?
Thanks for the help!!!
-Kyle

[kur4o]

From p01 OS only 12216125 support flex fuel.

You will need to tune from scratch or goto p59 route.

[Neukom720]

Tune from scratch? I just manually moved all my parameters from my stock c5 OS and Tune to the sierra based 12216125 flex os

[roughneck427]

i dug briefly two parameters stood out from a C5 cal and a truck cal i mapped the two parameters change as follows


Describes the type of drivetrain used on the vehicle,
3 2WD


Method of displaying the alternator diagnostic results
0 Request svs and Batt over C2