'A' Camshaft Position - Timing Over-Retarded

What it means

P0022 is defined as "'A' Camshaft Position - Timing Over-Retarded". the engine control module stores it when the monitored condition for this component or system is outside the limits programmed by the manufacturer.

This entry is compiled automatically from the standard definition and typical diagnostic practice for this type of fault. A detailed, reviewed article is in preparation.

Symptoms

• Check engine light on
• Rough or unstable idle
• Hesitation or poor acceleration
• Increased fuel consumption
• Possible limp mode with reduced power

Common causes

1. 'A' Camshaft Position - Timing Over-Retarded worn, contaminated or out of calibration
2. Mechanical problem in the system the sensor measures
3. Air, vacuum or exhaust leak influencing the reading
4. Wrong or low-quality replacement part
5. Wiring resistance causing a small voltage offset

How to diagnose

1. Compare the live 'A' Camshaft Position - Timing Over-Retarded reading with a known-good value or a second sensor at idle and at 2500 rpm
2. Check for air, vacuum or exhaust leaks that could skew the reading
3. Inspect the component for contamination and clean it if the design allows
4. Verify the part number is correct for the engine
5. Replace the 'A' Camshaft Position - Timing Over-Retarded if the reading remains out of specification

Related codes

Nearby codes in this group

• P0021"A" Camshaft Position – Timing Over-Advanced or System Performance (Bank 2)
• P0023'B' Camshaft Position - Actuator Circuit
• P0020'A' Camshaft Position Actuator Circuit
• P0024'B' Camshaft Position - Timing Over-Advanced or System Performance
• P0019Crankshaft Position - Camshaft Position Correlation
• P0025'B' Camshaft Position - Timing Over-Retarded
• P0018Crankshaft Position - Camshaft Position Correlation
• P0026Intake Valve Control Solenoid Circuit Range/Performance