How to reset fuel sensor module?

[nagual]

Where I live, we have both gas and etanol.
Sonic accept both fuels, and has a sensor to detect the porcentage of ethanol on it.
It happened not once, but twice times, when I filled my thank with etanol only, that the sensor locked in "etanol" and after that, when back to gasoline, I had a hard time trying to start up the engine.
So I had to take it at the GM service, and they used the scanner to reset the fuel type/porcentage information from the memory.

Can I perform this at home? Can I do it with a cheap OSD reader/iphone app? Can I reset it just by uplugging the ECM fuse?

 

[Big Turbo Sonic]

The sonic does not have an ethanol sensor in it!

 

[nagual]

You understand GM adapts cars for many markets do you?
As I said, where I live we use ethanol (pure) and gasoline (with 20% ethanol added) as main fuel options.
Most of the small cars have "flex" egine, they accept both fuels.
Again, Sonic has a sensor to detect the fuel quality, and porcentage of gasoline/ethanol.
This is a true fact.
My question is, if it is possible to reset such memories at home/DIY style.

 

[Big Turbo Sonic]

Maybe I am misunderstanding you, but the car does not have a flex fuel/alcohol sensor. Hence why there are companies selling them as aftermarket add ons.

Again, maybe I am misunderstanding.

 

[nagual]

You understand GM adapts cars for many markets do you?

Here in my country, all Chevy Sonic car are FLEX.
In fact, all the Chevy line, and also VW, Fiat, are all FLEX.
Also we dont have the 1.8 turbo diesel Sonic, only 1.6 FLEX Gasoline/Alcohol.


Is ts possible to reset the ECM at home/DIY style?

 

[Big Turbo Sonic]

My misunderstanding, forgot about other countries! If you have a tuner you can flash the tune over and it will reset anything. Also I think undoing the battery will clear everything. Sorry for the confusion!