P0019: Crankshaft to Camshaft Correlation (Bank 2 Sensor B)

P0019: Crankshaft to Camshaft Correlation (Bank 2 Sensor B)

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P0019: Crankshaft to Camshaft Correlation Issue? Here's the Straight Talk

Look - P0019 indicates a mismatch between the crankshaft and camshaft timing on bank 2, sensor B. This can lead to poor engine performance, increased emissions, and can even cause engine damage if not addressed. The issue often arises from a faulty timing chain or belt, a malfunctioning camshaft sensor, or even a problem with the engine control unit (ECU) itself.

Ignoring this code won't make it go away. It’s crucial to diagnose the root cause, as throwing parts at the problem can lead to wasted money and time. For precise guidance tailored to your vehicle, check the Mobile Master Mechanic app for VIN-specific diagnostics.

Symptoms

  • Check Engine Light illuminated
  • Rough idling or stalling
  • Reduced engine power
  • Poor fuel economy
  • Unusual engine noises
  • Difficulty starting the engine
  • Engine misfires
  • Increased exhaust smoke

Diagnostic order

  1. Check for additional trouble codes - free, using an OBD-II scanner.
  2. Inspect the camshaft and crankshaft alignment - visual check.
  3. Test the camshaft position sensor (should read 0-5 volts) - about $20 for a multimeter.
  4. Check timing chain/belt tension (should not exceed 0.5 inches of slack) - inspection may be free, but replacement can cost $300-$800.
  5. Examine the ECU for faults - diagnostic scan fee may vary ($100-$150).

Common questions

  • What causes a P0019 code?

    Common causes include a stretched timing chain, a faulty camshaft sensor, or issues with the ECU.

  • Can I drive with a P0019 code?

    It's not advisable. It can lead to further engine damage and reduced performance.

  • How do I reset the P0019 code?

    You can reset it with an OBD-II scanner, but make sure to fix the underlying issue first.

  • Will changing the oil help with P0019?

    Dirty oil can affect timing mechanisms, so changing the oil may help if the oil is the issue.

  • What is the cost to fix a P0019 code?

    Repair costs can range from $200 to over $1000, depending on what's causing the issue.

  • Can a bad battery cause a P0019 code?

    While unlikely, a weak battery can affect the ECU's performance, triggering codes.

  • What parts should I consider replacing?

    Timing chain/belt, camshaft position sensor, or the ECU.

  • Is this a common issue in all vehicles?

    Not all, but many modern vehicles with variable valve timing are susceptible to this code.

Vehicle-specific notes

  • Ford EcoBoost engines often experience timing chain wear, especially over 100,000 miles.
  • Honda K-series engines can have issues with the VTEC solenoid affecting timing.
  • Toyota 2GR-FE V6 engines may have timing chain problems due to oil sludge.
  • GM 2.4 Ecotec engines have known problems with the timing chain stretching.
  • Chrysler 3.6 Pentastar engines are sensitive to oil changes; neglect can trigger P0019.
  • BMW N20/N54 engines often have variable valve timing (VVT) issues affecting performance.
  • Subaru EJ20/FA20 engines can exhibit camshaft issues due to incorrect timing belt installation.
  • Nissan VQ35/VK56 engines should be monitored for timing chain wear at higher mileage.
  • Hyundai/Kia Theta II engines can experience camshaft sensor failures causing this code.
  • GM Vortec 5.3 can throw this code if the timing chain is not properly tensioned.

Parts and cost ranges

  • Camshaft position sensor - $20 to $150
  • Timing chain/belt - $300 to $800
  • Timing chain tensioner - $50 to $200
  • ECU replacement - $500 to $1,500
  • Oil change (if necessary) - $30 to $100

What people get wrong

  • Assuming the camshaft sensor is always the culprit without checking the timing.
  • Ignoring other related trouble codes that can provide crucial diagnostic clues.
  • Not considering the condition of the timing chain or belt before replacing sensors.
  • Failing to regularly maintain oil changes, which can lead to sludge issues.
  • Believing that resetting the code will solve the problem without fixing the underlying cause.

Related codes

For further troubleshooting, you might also want to check P0016, P0017, and P0018 which deal with similar timing issues.

Stop throwing parts at your car. The Mobile Master Mechanic app walks you through the exact diagnostic for YOUR specific VIN - engine, year, trim, even mileage-specific known issues. Free download.

-- Hank, Master Mechanic at Mobile Master Mechanic

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