June 26, 200421 yr Can one use a fuel pump meant for the multi port EFI on a single port EFI??? what is the difference between them? Seems the mpfi pumps are quite a bit cheaper than the spfi pumps and I just cant see spending around $200 on a pump if I can get one that will work fine for $90! the original pump had rust issues - got a used one but not in much better shape and suspicious of it not operating correctly - barely any fuel reaches the throttle body. looking to get a new one, but geez are they expensive!
June 26, 200421 yr Hey Heartless, Read the 'Similar threads' found by scrolling to the bottom of this screen. I'm pointing you that way because I didn't know the answer and was curious myself. Linda
June 26, 200421 yr Been using a pump off of a 87 turbo mpfi wagon on a loyale spfi wagon for 6 months.... seems to be fine.... mpfi puts out a different pressure but the inline regulator for the fuel rails sets the pressure right. Hush
June 26, 200421 yr it works the the same both ways, we got the rx pump in the loyale, and an spfi pump in the turbo wago
June 27, 200421 yr Author thanks for the replies gang!! would much rather pay 90 something than over 200!!
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