Quote:
Originally Posted by TKat13
when looking for aftermarket pumps, just make sure they support PWM, Pulse Width Modulation, that is what is needed for a returnless system. Way back in the day, when I put a 340lph pump in, I had to have the tune adjusted.
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I would imaging the SVT Focus pump supports PWM, are you saying you only need to adjust time if the pump DOES NOT support PWM??