Possible causes

– Faulty Fuel Lift Pump
– Fuel Lift Pump harness is open or shorted
– Fuel Lift Pump circuit poor electrical connection

Tech notes

Usually the solution to the problem is the fuel lift pump

When is the code detected?

– Engine Light ON (or Service Engine Soon Warning Light)

P0628 DODGE Description

The commanded signal to the fuel lift pump does not match the feedback signal