Thread: 1994 Ford F150
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Old 05-31-2011, 03:43 PM   #24 (permalink)
cleanspeed1
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Quote:
Originally Posted by Execut1ve View Post
so.... why are those particular temps the ones I want? cleanspeed answered it pretty well, thanks
With the stock programming in your ECM, the computer needs to see certain coolant temperatures so that it can calibrate the fuel / air mixture properly for mileage and emissions reasons. You start making changes to the system without a programming change, things get off and performance or mileage suffers.
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