Tuning flex fuel vehicles

[payne4life]

Hello,
I've been searching the internet for the last few weeks about info on tuning flex fuel vehicles and everything i find is mostly tuning cars to run on e85. what i am looking for is tuning my flex fuel truck to run better on gas and e85.

I have a 2000 2.2l s10 flex fuel. only mods are CAI and a slightly larger TB. my goal is to have a vehicle to run better on gas and E85. is it posible to tune for both or can i only tune for one and have to comprimise with the other? i dont know the tuning side of cars yet and i figure here would be the best place to learn.

Brandon Payne

[HNRClothing]

Post tune file - I looked at a stock 2000 s10 file and didnt see much. Didnt know they had flex fuel S10s then...

[payne4life]

i dont have hptuners but if it is posible to do what i want, ill end up getting one.
yea, my truck's a flex fuel but it doent have a badge on it that says flex fuel.

[BlurrSpeed]

If you can find someone in your area that has an HPTuner it does not cost anything for them to read your ECM. Then you can post it.

I am guessing, having never looked at the flex fuel tables, that there is either seperate tables for FF or some adder tables that add fuel to the main fuel tables & adjust the spark.

Also check to see if you vehicle is supported.

[BlurrSpeed]

OK Payne4life I found something for ya. I searched the tune repository & found an S10 2.2L auto that looks exactly like my 2005 Cavalier except there are some spark tables marked "(Alcohol)". I have to assume these are E85 table.Curious thing is there are not in alcohol fuel tables. This could be that HPTuners has not mapped them yet.

I posted a picture of the tables for a.

[Leafy]

At least on the cavalier, the alcohol spark tables do nothing.