Need help on wiring 2 way switch to switch between walbro & stock pump. I have the performance kit which is capable of switching plugs under truck, but don't know if running wires to dash will loose to many amps as stock pump appears to have no relay.Any addvice & pic's would help.Thanks ED

p.s. It may take time for me to reply
as I don't type. Letters on keypad
arn't in order.

 

Question: Why do you want to keep the stock lift pump inline with the GDP pump?
The GDP kit comes with a wiring harness with a relay. The connector plugs into the harness for the stock lift pump. Just need to wire the relay for 12v and ground.

MikeyB

 

Stock pump is still good. Just like to have backup without going under truck to change plugs.Pump is in tank. Thanks for reply. ED

 

Will the GDP draw through the stock pump when the stock pump is not running? Or do you have a seperate pickup for the GDP?

 

Seperate pickup tube from GDP

 

Anyone with advice or links to posts to help as I'm trying to do this, this weekend. Thanks, Ed

 

I wouldn't run the pump wires to a switch inside...instead I would install a relay with a 15A min fuse to supply power to the Walbro and run the low current wires for the relay into the cab on a switch. You could use any relay rated at 20A or higher from you auto parts store, an accessory fog light relay from Bosch would do the trick nicely.