think it involved taking out the relay and bridging two of the pins on the connector.
think its supposed to make the pump work at its higher speed all the time.is it safe?
fuel pump relay
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sam R1
fuel pump relay
has anyone done the fuel pump relay mod?
think it involved taking out the relay and bridging two of the pins on the connector. think its supposed to make the pump work at its higher speed all the time.
is it safe?
think it involved taking out the relay and bridging two of the pins on the connector.
think its supposed to make the pump work at its higher speed all the time.is it safe?
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nutter
Re: fuel pump relay
I think you'll find this doesn't do anything but wear the fuel pump out quicker.
Re: fuel pump relay
Ive done this and ran the car for 1 year like it, no problems whatso ever, i thought inital pick up was better off the line, but no figures to prive
regards
Rob
regards
Rob
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^Trickster^
- Posts: 2499
- Joined: Tue Dec 14, 2004 7:03 pm
- Location: North East
Re: fuel pump relay
Running the fuel pump at high voltage constantly will yield no increase in performace, the ecu switches to high voltage mode as soon as you make boost. There is a reason on rev 1 and 2 cars why they fitted the relay, there is a 4psi pressure drop across the rail from cylinder 1 to cylinder 4, i cant remember the ins and outs but the made it run slower for certain reasons. On the rev 3 engine the fuel rail is larger and does not have a large pressure drop like the first 2 revisions, if i can find the information on it i will post it later.
Graeme
There is a reason on rev 1 and 2 cars why they fitted the relay, there is a 4psi pressure drop across the rail from cylinder 1 to cylinder 4, i cant remember the ins and outs but the made it run slower for certain reasons. On the rev 3 engine the fuel rail is larger and does not have a large pressure drop like the first 2 revisions, if i can find the information on it i will post it later. Graeme