P222A

DTC P222A, sometimes indicated as P222A00 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing barometric pressure sensor "b" circuit.

The code means that the barometric pressure sensor is not working correctly. This sensor is used to measure the atmospheric pressure and send the information to the engine control unit. If it is not working correctly, the engine control unit will not be able to calculate the correct air-fuel ratio, which could cause the engine to run too rich or too lean.
There are a few things that could cause the barometric pressure sensor to not work correctly. The most common cause is a bad sensor. If the sensor is bad, it will need to be replaced. There could also be a problem with the wiring or the connector to the sensor. If there is a problem with the wiring or connector, it will need to be fixed. There could also be a problem with the engine control unit. If there is a problem with the engine control unit, it will need to be repaired or replaced.

• P222A: Pressure Sensor B Circuit
• P222A: Barometric Pressure Sensor "B" Circuit
• P222A: Barometric pressure (BARO) sensor B – circuit malfunction
• P222A 00: Barometric pressure (BARO) sensor B - circuit malfunction