Does anyone know if Hondata is thinking of adding flex fuel option for flashpro. I have flashpro and thinking of getting a Ethanol content analyzer. So I am wondering if this will come in handy for future flex fuel.

 

The stock fuel injectors wouldn't be sufficient for Flex Fuel use, but if you add larger injectors, you might be able to make Flex Fuel work. Of course, you would have to set the ECU up for continuous closed loop operation, even at full throttle. You would also have to have a primary O2 sensor that reads more accurately than many. I've seen a wide range of primary O2 sensor readings. Some read WAY richer than actual, most read moderately richer than actual, and very few read exactly accurate.

 

they added it last year to the S300 which is for any obd1 honda ecu. i don't know if they will add it to k-pro or flashpro.

 

Why?

 

I can't say for non-FlashPro S2000's, but the current verion of FlashPro for the S2000 only supports application of long-term fuel trim while in closed loop. However, there are 2 versions of closed loop, one which operates at the light load AFR target (14.7), and another that operates at the high load AFR target (from the WOT lambda adjustment tables). If you have a primary O2 that will read above 12.5 while still having a safe full throttle AFR, then you could use that mode to run Flex Fuel. You would also need to make sure the min / max fuel trims weren't too restrictive.

 

I have a aem wideband and have dissabled the stock o2 sensors and also running id2000 injectors.