P0257 OBD II Trouble Code Injection Pump Fuel Metering Control B Range/Performance (Cam/Rotor/Injector)

How to easily diagnose, repair, and what causes a P0257 code which indicates an out of range condition in the B injection pump fuel metering control.

Symptoms of P0257 OBD II Trouble Code

Common Causes of P0257 OBD II Trouble Code

Severity of P0257 OBD II Trouble Code