Quote:
Originally Posted by Skyman 08
If all it is is a ECM reprogram then why do they have 2 different engine options, one with and one without and the E-85 cost more?
Seems to me if it was that simple then it would be standard on ALL engines.
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factory flex fuel vehicles can run on straight e-85 or any mixture of gas and e-85,, if you program a standard vehicle to run on e-85 you must fill up with straight e-85 every time,, the factory flex fuel vehicles have a sensor to measure the alcohol content and can vary the timing and fuel to run on any % of gas/e-85
the aftermarket conversion boxes have a switch so you can go back to standard gasoline if you want to but you need to run out most all of the e-85 first, then fill up with gasoline and flip the switch back to stock