Where did you wire the relay to make it stop when the motor dies? I didn't think that was possible without an interceptor on the coil (or CAS).lambo74 wrote:i just fitted one of the pumps from ebay, works a treat. i also went to the trouble of wiring in a relay so if the motor stops so does the fuel pump.
Fuel Pump Question :S
F8B EFI turbo - Three pots and a snail.
i tapped the wire from the oil pressure switch, so the way i wired in the relay was:
30- i ran power from the ignition
87- i wired to the fuel pump
86- i wired to the ground
85- i wired to the oil pressure switch
30- i ran power from the ignition
87- i wired to the fuel pump
86- i wired to the ground
85- i wired to the oil pressure switch
[img]http://i347.photobucket.com/albums/p464/lambo742003/mb.jpg[/img]
The lemon.
The lemon.
Very clever! The only problem I can see will be starting the car when it hasn't been going for a while, because the fuel pump won't go while the engine is cranking. (Low oil pressure.)
F8B EFI turbo - Three pots and a snail.
yeah true, so what i did there was i also wired the fuel pump to a push button switch so i can prime the carby if i leave the MB sitting for a while.
[img]http://i347.photobucket.com/albums/p464/lambo742003/mb.jpg[/img]
The lemon.
The lemon.
Nice work! You've thought of everything.
F8B EFI turbo - Three pots and a snail.
Which from memory is the one that triggers the carby shutoff solenoid, correct? If not then it would be a suitable alternative.
F8B EFI turbo - Three pots and a snail.
just thinking out loud here so feel free to pick, (as if you need my permission!) but if you run an additional wire to the fuel pump from the small activation wire to the starter solenoid it will only carry current when cranking and will provide power to the fuel pump while cranking. no relays or whatever required. true??
Sounds plausible to me!
F8B EFI turbo - Three pots and a snail.
Im not the best with auto electrics but I think you would need a diode to prevent cross- energising the circuits ( I say this only because I had to make up a Diode pack for the idle up on the G10 ) but it does sound feasible cheers