P14A1 Code: Meaning, Causes, and Symptoms | OBD2 Codes

P14A1 – Exhaust Gas Back Pressure Sensor Short Circuit To Positive

 

P14A1 Possible Symptoms

 

Engine Light ON (or Service Engine Soon Warning Light)

 

P14A1 Possible Causes

 

Faulty Exhaust Gas Back Pressure Sensor,Exhaust Gas Back Pressure Sensor harness is open or shorted,Exhaust Gas Back Pressure Sensor circuit poor electrical connection

 

P14A1 Description

 

The Engine Control Module (ECM) monitors the Exhaust Gas Back Pressure Sensor. The ECM sets the OBDII code when the Exhaust Gas Back Pressure Sensor is not to factory specifications.