P0023
MODERATEB Camshaft Position - Actuator Circuit (Bank 2)
What this code means
B Camshaft Position - Actuator Circuit (Bank 2). This family covers the measurement of incoming air and injected fuel, together with the emission devices attached to them. A fault here distorts the mixture the engine burns, which costs fuel and raises emissions.
How to read this code
- PPowertrain
- 0standardised code
- 0Fuel and air metering, auxiliary emission controls
- 23P0023
The letter P names the system: Powertrain. The digit 0 that follows marks a standardised code, shared by all manufacturers code. The next digit, 0, locates the fault: fuel and air metering, auxiliary emission controls.
What to do
Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.
Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back.
Nearby codes
- P0020A Camshaft Position Actuator Circuit (Bank 2)
- P0021A Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
- P0022A Camshaft Position - Timing Over-Retarded (Bank 2)
- P0024B Camshaft Position - Timing Over-Advanced or System Performance (Bank 2)
- P0025B Camshaft Position - Timing Over-Retarded (Bank 2)
- P0026Intake Valve Control Solenoid Circuit Range/Performance (Bank 1)
- P0027Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 1)
- P0028Intake Valve Control Solenoid Circuit Range/Performance (Bank 2)