Flexfuel Ecm Settings

[neto1978]

MY TRUCK IS FLEXFUEL ,I GOT THE HYPERTECH MAXENERGY ,AND A TIME AGO I SET THE ECM UNIT TO REGULAR GASOLINE (BUT USING E-85) THE TRUCK FELT THE DIFFERENCE ,LOSS OF POWER.

SO I PUT IT BACK TO FACTORY SETTING.

 

THE ECM ON THE FLEX FUEL WORKS BASED ON FILLING UPS (MORE THAN A CERTAIN AMOUNT OF FUEL IN THE TANK,IGNITION OFF AND 11 MILES TO DETECT WHAT KIND OF FUEL IS ON THE TANK ,AND THEN CORRECT THE TIMMING ,FUEL AIR RATIO ETC...

 

MY QUESTION IS :

IN ANY WAY ,COULD THE HYPERTECH PROGRAMMER MESS UP THE ECM FACTORY PROGRAM WITH THE IGNITION TIMMING,AIR FUEL RATIO ON FLEX FUEL SYSTEMS?

 

WHY DO THEY SAY THAT IT WORKS FOR FLEX FUEL ? WHEN THE PROGRAMMER IS SET TO REGULAR OR PREMIUM GASOLINE ON NON FLEXFUEL VEHICLES ,IT'S DONE ,IT'S OK ,BUT WITH FLEX FUEL VEHICLES IT'S DIFFRENT BECAUSE THE ECM RECALIBRATES THE TIMMING,AIR-FUEL RATIO ,ETC...EVERYTIME THE TANK IS FILLED UP

 

AM I CORRECT?

 

TKS