P2433 Buick Secondary Air Injection System Pressure Sensor Circuit High Voltage
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
What about the obd code?
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 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