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 PCM has detected a high voltage condition on the AIR Pressure Sensor signal circuit
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P2433 BUICK 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