KlaroFault codes › P22xx
P22xx fault codes: Fuel and air metering sensors
Oxygen and NOx sensors, barometric pressure, turbo boost performance and intake leaks: the measurements the control unit relies on to meter air and fuel.
How to read this code
The letter P names the system: Powertrain. The next digit, 2, locates the fault: fuel and air metering sensors.
These codes are generic: they mean the same thing on every make. Some manufacturer tools display them with a two-digit suffix, such as P0101-00 or P010100: the suffix refines the fault type, and the base code keeps its meaning.
The codes of this family, part by part
NOx sensor
- P2200NOx Sensor Circuit (Bank 1 Sensor 1)
- P2201NOx Sensor Circuit Range/Performance (Bank 1 Sensor 1)
Manifold pressure sensor (MAP)
- P2227Barometric Pressure Circuit Range/Performance
- P2228Barometric Pressure Circuit Low
- P2229Barometric Pressure Circuit High
Oxygen sensor (lambda sensor)
- P2237O2 Sensor Positive Current Control Circuit/Open (Bank 1 Sensor 1)
- P2243O2 Sensor Reference Voltage Circuit/Open (Bank 1 Sensor 1)
- P2251O2 Sensor Negative Current Control Circuit/Open (Bank 1 Sensor 1)
- P2270O2 Sensor Signal Stuck Lean (Bank 1 Sensor 2)
- P2271O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2)
- P2272O2 Sensor Signal Stuck Lean (Bank 2 Sensor 2)
- P2273O2 Sensor Signal Stuck Rich (Bank 2 Sensor 2)