OBD Guide
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P0018

Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)

P0018 is an OBD-II diagnostic trouble code meaning: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A). Common causes: stretched or broken timing chain, worn or broken timing chain tensioner. Estimated repair cost: $167–889.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–889 (est.)

Symptoms

  • Unstable engine idling
  • Reduced power and deterioration in dynamics
  • Increased fuel consumption
  • Metallic knock in the timing belt area
  • Difficulty starting the engine
  • Check Engine Light Is On

Causes

  • Stretched or broken timing chain
  • Worn or broken timing chain tensioner
  • Crankshaft position sensor malfunction
  • Camshaft position sensor malfunction
  • Problems with the VVT phase change system
  • Worn chain guides or guides
  • Incorrect installation of timing marks after repair

How to Fix

  1. Read error codes and analyze data with a scanner
  2. Check the condition of the timing chain/belt visually
  3. Measure the timing chain tension with a special tool
  4. Check the operation of the crankshaft and camshaft position sensors
  5. Diagnose the variable valve timing system
  6. If necessary, replace the timing chain and related components
  7. Set the correct timing marks
  8. Clear error codes and test drive

Related codes

P0016P0017P0019P0020P0021P0022

Error P0018 by Vehicle Brand

AcuraAudiBAICBMWBYDBuickCadillacChanganCheryChevroletChryslerCitroenDodgeDongfengExeedFAWFordForthingFotonGACGMGMCGeelyGreat WallHavalHondaHongqiHyundaiInfinitiJACJaecooJaguarJeepJetourKaiyiKiaLadaLexusLi AutoLifanLincolnLivanMazdaMercedes-BenzMercuryMitsubishiNIONissanOldsmobileOmodaOpelPeugeotPlymouthPontiacRenaultSWMSaturnSkodaSkywellSubaruSuzukiTankToyotaVolkswagenVolvoVoyahXPengZeekrZotye

FAQ

What does the P0018 code mean?

P0018 is an OBD-II diagnostic trouble code that indicates: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)

What causes a P0018 error code?

The most common causes of P0018 include: Stretched or broken timing chain; Worn or broken timing chain tensioner; Crankshaft position sensor malfunction; Camshaft position sensor malfunction.

How do I fix a P0018 diagnostic trouble code?

To fix P0018: Read error codes and analyze data with a scanner. Check the condition of the timing chain/belt visually. Measure the timing chain tension with a special tool. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0018?

Limited driving only, diagnose soon

How much does it cost to fix P0018?

The estimated repair cost for P0018 is $167–889. Actual cost depends on your vehicle, location, and labor rates.

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