Return line on stock pump?
03-04-06, 03:20 PM
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Return line on stock pump?
Does the efi pump from an S4 have a return line? I can't get under the car to see how the fuel system is plumbed under the car right now, its stuck in a crammed garage. Anyone know first hand?
03-04-06, 04:07 PM
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on the firewall below the oil filter, there is a metal canister (feed line with filter) and above it a steel line (return)? this is an 88 S4
Just want to check with people that have replumbed the system.
Just want to check with people that have replumbed the system.
03-04-06, 04:27 PM
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Checking the Factory Service Manual will tell you that the fuel pump feeds the fuel filter, then up to the primary fuel rail through the pulsation damper to the primary rail, up to the secondary rail, and then through the pressure regulator back to the tank via a return line.
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trickster
2nd Generation Specific (1986-1992)
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