mark*b

Installing an uprated fuel pump and I've since found a good thread for installation in a US saloon but does any one know where the exact location is for a sti wagon?

stockcar

exactly the same.............................

mark*b

OK, it's just under the carpet on the right hand side, took about 5 secs to find. But now I've come across a different problem.

The pump I have is a FSE ITP160. The electrical connecter is a plug but the original one has 2 wires both screw-attached to a - and + terminal on the pump. It's also about 1/3 the size of the original one. I'm assuming that I have the right FSE pump sent to me but do I have to start stripping and joining wires to fit the new one on?

I've read other threads about removing the 2 wires that go to a resistor to convert the 12V supply to a 9V. The original pump has 12V printed on it. Do I still need to bypass the resistor?

vulnax999

iTrader: (7)

Dunno about this particular fuel pump, but the Walbro 255l/min pump I got off a group buy on here ( Hi Alyn! ) fitted fine, but DID need the wires cutting and reconnecting from the loom/old pump ( I forget which ). I used spade connectors ( no rubber covers! ).

I was a bit concerned since the pump sits IN the petrol, but been fine for over a year.

Neil

mark*b

Thank you. Did you notice if your OEM one was larger than the Walbro? Which is the case with mine. Seems weird that a smaller size unit will pump more than a bigger one. I have an STi V (not sure if that has a larger OEM pump than a WRX).

Anyway, did you still keep the wires on that go to the resistor?

stockcar

you need to remove the resistor (fastened on the upright of the bracket, behind the pump) completely from the circuit and replace the original connector with the new one supplied in the box................................
the size of pump is not the issue, ite the "flow rate" that counts..................
hope this is of help,
alyn - asperformance.com

vulnax999

iTrader: (7)

Erm, what would the effect be if I had not removed the resistor from the circuit but joined the new pump wires to the old wires with connectors?

I followed whatever instructions came with the pump, and also off Scoobynet and other sites, on best way to fit. I think I cut the wires to the old pump ( as were soldered on IIRC ) and used connectors to join the new pump wires to the old ones .. so likely I left the resistor in the circuit then? It is a jap import WRX wagon if that matters.

Thanks


- Size - yes, the Walbro was a little smaller, there are various bits in the kit to space out th pump for fitting on the OEM carrier.

mark*b

Thanks so much guys. It's in and whirring a treat. Haven't been able to throw it really hard into right hand corners on empty to see if it stops the surge problem but will keep you posted. Think I might need a swirl pot as well