Where do i connect the analogue output 0v to 5v from the FF (Innovate gauge) to be able to implement the FF patch to the ECU? On a EVO 8

 

It depends on which flex fuel ECU patch you are using and which ECU you have. For example, if you are planning to use AST's FreeFuel ECU patch it uses an analog DC (0-5V) input connected to the ECU pin that is used for map switching:
- Evo 8 4-plug ECU: pin 42
- Evo 8 3-plug ECU: pin 64

For an accurate answer, let us know which ECU you are running, which ROM ID, and which Flex Fuel patch you plan to run.

 

thank you

 

So I would just take the wire with 0v to 5v ethanol content connect to pin 42 and get it tune. That all. Get it tune.