E85 on 2016 Z06

[steveiguess]

I have a 2016 Z06 that has been tuned for pump gas. I am looking at doing a blend of E85, what all needs to be done in the tune to accommodate the addition of a flex fuel sensor.

What tables are you programming after the fact, or where would be a good place to read more on this topic? If this is something that can be done remotely, I have no problem compensating anyone either, but would rather learn...

Thank you in advance.

[schpenxel]

Fuel:
Flex fuel, enable
Fuel sensor, sensor
Set delay/transition volume to your hearts desire (low if the sensor is right near the rail)
Stoich AFR table, copy table from any flex fuel file.

Spark:
Flex fuel spark table
and flex fuel mult table

Pretty self expanatory. Flex fuel spark is the max amount of timing to add. Flex fuel mult lets you add portions of that timing as ethanol increases

At least, that's how it was on gen 4's. I've never done it on a gen 5.

[Ben Charles]

I set the appropriate DTCs (2 of them) and set the diagnostics test enabled from disabled

[TSloper]

I set the appropriate DTCs (2 of them) and set the diagnostics test enabled from disabled

Pay attention to the AFR Alcohol spark correction table. On the 16 Camaro SS it is horrible. I copied the Gas version over.

[steveiguess]

Thank you all for the insight.

[knjtuner]

How did it go?