Can any one tell me at what psi and gph/lph DC or Cummins says a LP is no good? I know many on this site feel 10psi is the min but what is the paramiters for warranty basis. Thanks
ratsun

 

I believe the lowest you should see is 8 psi under full throttle. But I have read that standing in N full throttle or driving full throttle may be up to the discretion of the dealer.

 

Lift pump should put out at least 1.3 liters in the 20 sec run time of the lift pump when you bump the starter. Best to split the line from the filter to the pump and attach a hose to the line for this measurement.

 

1.3 liters in 20 sec thats what I was looking for.
Thanks
ratsun