narelle

Does anyone have a picture of the fuel pipes on 1993 wrx from the chassis to the filter and filter to the rails need to no which pipe goes where cheers for the help

FMJ

iTrader: (2)

So you are unsure which pipe from the firewall is the source and which is the return? To be sure you could just prime the system with them disconnected and see which one fuel comes out of? But to do this safely you will need to connects a hose to them which leads to a container or something that will stop the fuel spraying everywhere. Two man job, one to turn the key and the other to man the hoses.

On my MY00 the supply is the lower of the two thicker pipes that come out of the firewall. Mine has black insulation. The return pipe is the higher one and has grey insulation.

Derby1971

Here's a couple of pics from my 95 wrx ra i took when i stripped my inlet off if they are any good to you.

narelle

thanks for the help looking at that mine are all plumbed up correctly but I will have to double check tomorrow my fuel pressure seems to drop off very quickly when the car is switched off after its primed I think this maybe the fault but atleast I can check the lines and make sure im happy now thanks very much for the help

FMJ

iTrader: (2)

Yeah those pics match what I thought. Black is supply grey is return.

Have you got the standard FPR or a aftermarket one?

joz8968

iTrader: (13)

Was gonna say, my immediate thought was FPR issue. Membrane knackered? Leaking?

narelle

I've tried two on it same issue so I was thinking possible pump issue

joz8968

iTrader: (13)

That, and the wiring/voltage, would be the next thing to look at.