2009 LH8 Flex fule tune

[H3T]

Hi
I am looking to modify my H3T for flexfuel.
I installed a GM flexfuel sensor and pin in E67 but before changing anything in the ECM do you know if I can use a tune from another car to compare like 2009 avalanche which is flexfuel ?

thanks

[GHuggins]

Yes, just make sure to set to sensor. A lot of early flex vehicles were virtual which used fuel trims to adjust the ethanol percentage.

[H3T19]

OK

I checked the chevy avalanche 2007-2008, chevy Colorado 2010 and others, but the gas spark table is all different from the H3 V8, so I can't copy the flexfuel table from these models.
I thought it was possible with 2007-08 avalanche because LC9 and LH8 are very similar, difference is only the camshaft

[H3T19]

I need help
Someone could check my tune for flexfuel

original
2009 HUMMER H3T STOCK TUNE.hpt

flexfuel
2009 HUMMER H3T FLEX FUEL LAST.hpt

thanks

[dhoagland]

I made a few changes
-Fuel system, Diagnostics, Set to Enable
-Code P0179 & 0179 Mill on First error
-Populated Table 12635 (PE/COT Spark correction)
-Populated Table 12636 (Mult vs Composition)
-Populated Table 12663 (Max Torque Timing Multiplier)

Other than that all needed tables seem to be populated

[H3T19]

Thanks for your help.
it works very well.
Now I look for the 4L60.