CAR OBD CODES

P0257 OBD Code Definition:
P0257 Injection Pump Fuel Metering Control B Range / Performance (Camshaft / Rotor / Injector)
P0257 OBD Code Description:

OBD2 Code P0257 Definition:
The ECM detects a discrepancy between the Pulse-Width Modulation (PWM) supplied to the Electronic Fuel Control Actuator (FCA) and the PWM returned from the Electronic Fuel Control Actuator (FCA). Symptoms

Possible sumptoms of P0257
– Engine Light ON (or Service Engine Soon Warning Light) Possible Causes

Possible causes of P0257
– Fuel Pump – FCA Driver Open – Return Circuit Open from FCA to ECM – FCA Driver Circuit Shorted to External Voltage – FCA Return Circuit Shorted to External V Possible Solutions

Note: The information on the P0257 error code is purely informative, if you need more useful information, please consult your technician.