Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer has found a problem with the part that controls the timing of how the engine's parts move on one side of the engine.
The P0020 code indicates an issue with the camshaft position actuator circuit for 'A' camshaft on bank 2. This actuator is responsible for adjusting the camshaft timing to optimize engine performance.
The camshaft position actuator is an electronic device that adjusts the position of the camshaft to improve engine efficiency and performance. The 'A' camshaft refers to the intake camshaft, and 'Bank 2' refers to the side of the engine opposite to cylinder 1. This code is triggered when the Engine Control Module (ECM) detects an open circuit or a malfunction in the actuator's control circuit.
• Check Engine Light is on
• Poor engine performance
• Rough idling
• Faulty camshaft position actuator
• Open or shorted wiring in the actuator circuit
• Faulty ECM
Camshaft: A shaft in the engine that controls the opening and closing of the valves.
Actuator: A device that moves or controls a mechanism or system.
• Use an OBD-II scanner to verify the code.
• Inspect the wiring and connectors for damage or disconnection.
• Test the camshaft position actuator for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the camshaft position actuator if faulty.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regular maintenance of the engine and its components.
• Ensure timely oil changes with the correct oil type.
• Regularly inspect wiring harnesses for wear and tear.
Engine Performance
• Avoid driving the vehicle until repaired to prevent further damage.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with your vehicle manufacturer for warranty coverage on engine components.
This code has been common in vehicles with advanced variable valve timing systems, which have become more prevalent in modern engines.
Moderate – It is advisable to address this issue soon to avoid potential engine damage.
Ignoring this code can lead to increased emissions and potential engine damage, which may violate emissions laws.
• Engine at operating temperature
• Vehicle in park or neutral
The camshaft position actuator is located on the cylinder head, typically near the camshaft.
Q: Can I drive my car with a P0020 code?
A: It is not recommended to drive with this code as it can lead to further engine damage.
Q: What happens if I ignore the P0020 code?
A: Ignoring this code can result in poor engine performance and potential damage to the engine.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.