Possible causes
– Faulty AIR Pressure Sensor
– AIR Pressure Sensor harness is open or shorted
– AIR Pressure Sensor circuit poor electrical connection
– AIR Pressure Sensor harness is open or shorted
– AIR Pressure Sensor circuit poor electrical connection
When is the obd code mean?
The AIR Pressure Sensor is reporting a pressure greater than or less than expected during the system monitor test
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P2431 CHEVROLET OBD Code Description
The Secondary Air Injection (AIR) System aids in the reduction of hydrocarbon exhaust emissions during a cold start-up. This occurs when the start-up engine coolant temperature (ECT) is between 5-50