OBD Guide
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P0020

ACamshaft Position Actuator Circuit (Bank 2)

P0020 is an OBD-II diagnostic trouble code meaning: ACamshaft Position Actuator Circuit (Bank 2). Common causes: bank 2 vvt solenoid malfunction, open or short circuit in vvt circuit wiring. Estimated repair cost: $89–278.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$89–278 (est.)

Symptoms

  • Rough engine idle
  • Reduced engine power and response
  • Increased fuel consumption
  • Difficulty starting the engine
  • Metallic knock at the top of the engine
  • Check Engine Light Is On
  • Unstable engine speed

Causes

  • Bank 2 VVT solenoid malfunction
  • Open or short circuit in VVT circuit wiring
  • Clogged oil filter or VVT system channels
  • Low oil pressure in the system
  • Using unsuitable or contaminated engine oil
  • Mechanical failure of the phase regulator
  • Engine control unit (ECU) malfunction
  • Damaged VVT solenoid connector
  • Jamming of the phase change mechanism

How to Fix

  1. Connect a diagnostic scanner and read all error codes
  2. Check the level and condition of the engine oil, replace if necessary
  3. Visually inspect the bank 2 VVT solenoid wiring and connectors
  4. Measure the resistance of the VVT solenoid (should be 6-12 ohms)
  5. Check the supply voltage at the solenoid (should be 12V)
  6. Check the oil pressure in the engine lubrication system
  7. Remove and clean VVT solenoid from oil deposits
  8. If necessary, replace VVT solenoid bank 2
  9. Check the operation of the camshaft phase regulator
  10. Clear error codes and test drive to check
  11. If the error reappears, check the ECU

Related codes

P0010P0011P0021P0025P0341P0346P0365P0390

Error P0020 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0020 code mean?

P0020 is an OBD-II diagnostic trouble code that indicates: ACamshaft Position Actuator Circuit (Bank 2)

What causes a P0020 error code?

The most common causes of P0020 include: Bank 2 VVT solenoid malfunction; Open or short circuit in VVT circuit wiring; Clogged oil filter or VVT system channels; Low oil pressure in the system.

How do I fix a P0020 diagnostic trouble code?

To fix P0020: Connect a diagnostic scanner and read all error codes. Check the level and condition of the engine oil, replace if necessary. Visually inspect the bank 2 VVT solenoid wiring and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0020?

Limited driving only, diagnose soon

How much does it cost to fix P0020?

The estimated repair cost for P0020 is $89–278. Actual cost depends on your vehicle, location, and labor rates.

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