OBD2 Error Code P0020: How to Fix It

Medium 1-2 hours High Severity Verified June 2026
Error Code
P0020
Brand
OBD2
Product Type
automotive
Severity
High
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P0020 indicates an open circuit in the intake camshaft position actuator for Bank 2 of your engine. This means the engine control module (ECM) has detected that the variable valve timing (VVT) solenoid circuit is not functioning properly, which can cause rough idling, poor fuel economy, and reduced engine performance.
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Tools You'll Need

How to Fix Error Code P0020

  1. Turn off engine and ensure safety

    Never work on a hot engine. Hot components can cause severe burns.
  2. Connect OBD2 scanner and verify code

  3. Locate Bank 2 camshaft position actuator

  4. Inspect electrical connector and wiring

  5. Test electrical continuity

    Ensure ignition is OFF when testing electrical circuits to prevent damage to ECM.
  6. Check actuator operation

  7. Replace faulty components

    Use only OEM or high-quality aftermarket parts to ensure proper operation.
  8. Clear codes and test drive

Parts You May Need

Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
Check Price on Amazon
Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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Camshaft position actuator solenoid
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Electrical wiring harness
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Electrical connector
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When to Call a Professional

Call a professional mechanic if you find internal engine timing issues, if multiple camshaft codes are present simultaneously, or if you're not comfortable working with electrical systems. Also seek professional help if the problem persists after replacing the actuator, as this may indicate ECM issues or internal engine damage.

Frequently Asked Questions

What causes P0020 error code?
P0020 is typically caused by a faulty camshaft position actuator solenoid, damaged wiring harness, poor electrical connections, or rarely, a malfunctioning engine control module (ECM).
Can I drive with P0020 code?
While you may be able to drive short distances, P0020 can cause poor engine performance, reduced fuel economy, and potential engine damage if left unrepaired. Address this issue promptly to avoid more expensive repairs.
How much does it cost to fix P0020?
Repair costs typically range from $150-$400 if it's just the actuator solenoid, or $300-$800 if wiring harness replacement is needed. Professional diagnosis usually costs $100-$150.
Is P0020 the same as P0010?
No, P0020 affects Bank 2 intake camshaft while P0010 affects Bank 1 intake camshaft. However, both codes indicate similar problems with the variable valve timing system on different engine banks.
What is the difference between Bank 1 and Bank 2?
Bank 1 contains cylinder #1, while Bank 2 is the opposite side. In V6 and V8 engines, Bank 2 is typically the side that doesn't contain cylinder #1. Check your vehicle's service manual for the exact configuration.