davalley
New Member
- Messages
- 7
- Location
- Snoqualmie, WA, USA
So what is the harm in running an on/off switch to my fuel pump and turning it on/off manually?
Running a fuel pump continuously
- Thread starter davalley
- Start date
The 1UZFE EGR Delete Kit is available for sale here.
gloverman
Well-Known Member
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- 3,140
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- Hamilton. New Zealand
The problem is if you crash the fuel pump will continue to run. Not the safest idea. Best to wire it correctly. Cheers
davalley
New Member
- Messages
- 7
- Location
- Snoqualmie, WA, USA
I dunno just curious. I am running a swirl pot setup and i wanted to turn the tank to pot pump on first, to prime the pot, manually; and then wire the other with the ignition switch. Is that stupid/necessary? any tips. I've never run a swirl pot before
thanks for any input!!
thanks for any input!!
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- Messages
- 5,632
- Location
- Sydney, Australia
In my original instal I used a swirl pot.
I had a carter lift pump to the pot and an inline Commodore pump to feed the engine.
The first time I started it up I primed the swirl pot by taking power off the in line pump. Once there was fuel in the swirl pot I reconnected the in line pump and started it up. Ok it didn't start, as I had the polarity reveresed on the on line pump but once swapped over it started up.
From then on I never had to turn enither pump on or off. The Carter was fed from the ignition switch and the in line was controlled by the ECU. This waay the Carter was always running.
I had a carter lift pump to the pot and an inline Commodore pump to feed the engine.
The first time I started it up I primed the swirl pot by taking power off the in line pump. Once there was fuel in the swirl pot I reconnected the in line pump and started it up. Ok it didn't start, as I had the polarity reveresed on the on line pump but once swapped over it started up.
From then on I never had to turn enither pump on or off. The Carter was fed from the ignition switch and the in line was controlled by the ECU. This waay the Carter was always running.
davalley
New Member
- Messages
- 7
- Location
- Snoqualmie, WA, USA
so, just to clarify.. you have the carter fed by constant b+ through the ignition switch.. power is cut off when the ignition is shut off? ANd what is the significance of running the inline through the ecu?
thanks!!
thanks!!
devojet
Member
- Messages
- 145
- Location
- Gold Coast, QLD, Australia
Wire the pumps to the normal fuel pump relays, then add a momentry push button to power the lift pump to prime the swirl pot.
That way you can prime the system and also still have the safety of the pumps cutting out when the engine stops (ie in a crash).
Cheers
Daniel.
That way you can prime the system and also still have the safety of the pumps cutting out when the engine stops (ie in a crash).
Cheers
Daniel.
davalley
New Member
- Messages
- 7
- Location
- Snoqualmie, WA, USA
OOO.... 
... i like that idea. thank you all for the help!!!
... i like that idea. thank you all for the help!!!
- Messages
- 5,632
- Location
- Sydney, Australia
All good if you have a factory ECU that will cut the pumps.
Quite a few aftermarket ECU's can't do that.
Quite a few aftermarket ECU's can't do that.
devojet
Member
- Messages
- 145
- Location
- Gold Coast, QLD, Australia
What Aftermarket ECU's have you seen that don't cut the fuel pump when the engine stops?
I wouldn't buy one of them unless I had some other device to cut the pump when the engine stops.
I wouldn't buy one of them unless I had some other device to cut the pump when the engine stops.
