Truck is spitting and sputtering until i get high rpms. codes are 1693 and 0230. I think that has something to do with lift pump but i installed big line walbro bout six months ago

Any help would be great

Thanks

 

P0230 Transfer Pump (Lift Pump) Circuit Out of Range.
Problem detected in fuel transfer pump circuits.

1st question, what's your lift pump fuel pressure?
How is your new lift pump wired?

 

I have 17 lbs at idle and 14 at WOT. My walbro is wired per instructions, with relay tied to battery.

 

Ive took cables off the batteries for a while and tried to clean all conections. Bull it still is surgeing and have codes

 

Did ya drain the water trap?

 

Yes i drained it along with changing fuel filter.

 

Is the old lift pump wiring signaling the relay?
Can you adjust the lift pump pressure down to 15 or 16psi idle?

 

Yes the old lift pump wiring plugs into the walbro relay. I dont know if i can adjust the pressure

 

I'd tell it to the folks you bought the Walbro from.