What goes on inside the infamous FMU???
#1
What goes on inside the infamous FMU???
Hey I wanted to know what the FMU does exactly....I know it richens things up but how? I mean how does it trick the ECU into giving up more fuel? Does it alter the map voltage, coolant temp sensor or what? does it have the same drawback as the AFC hack where it advances timing too much in the lower revs? thanks!
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