P0019 Fault Code

P0019 OBD-II Trouble Code Short Description

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

What does trouble code P0019 mean?

The P0019 fault code in cars refers to the "Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)" error. This means that there is a misalignment or synchronization issue between the crankshaft and camshaft on the bank 2 sensor B side of the engine.

The camshaft position is crucial for proper engine operation and timing, as it controls the intake and exhaust valves' opening and closing. It relies on the position information from the crankshaft to ensure the exact timing of these valves.

When the P0019 error code appears, it indicates a problem with this correlation between the crankshaft and camshaft on the bank 2 sensor B side. This can have several potential causes, including a malfunctioning camshaft or crankshaft position sensor, timing chain/belt wear or tensioner failure, or an issue with the engine's mechanical timing.

To diagnose and resolve the P0019 fault code, the following steps are typically taken:

  1. Check the wiring and connections: Inspect the wiring and connectors associated with the camshaft and crankshaft position sensors. Look for any damage, corrosion, or loose connections and repair or replace as necessary.

  2. Test the sensors: Use a diagnostic tool to test the camshaft and crankshaft position sensors' functionality. If faulty, they should be replaced.

  3. Inspect the timing components: Check the condition of the timing chain/belt, tensioner, and related components. Any signs of wear, damage, or misalignment should be addressed by replacing the necessary parts.

  4. Verify mechanical timing: If the above steps don't resolve the issue, a thorough inspection of the engine's mechanical timing may be required. This can involve checking the alignment marks on the camshaft and crankshaft, as well as confirming proper installation of the timing chain/belt.

It is recommended to consult a professional mechanic or technician to properly diagnose and fix the P0019 fault code. Ignoring or neglecting this error can lead to engine misfires, decreased performance, and potential damage to the engine components.


What are the symptoms of the P0019 code?

Some possible symptoms of a P0019 fault code on cars are:

  • Check Engine Light (CEL) illuminated
  • Engine misfires or runs rough
  • Decreased fuel efficiency
  • Engine stalls or struggles to start
  • Hesitation or lack of power during acceleration
  • Abnormal engine noise or vibrations

Please note that these symptoms may vary depending on the make and model of the vehicle. It is always recommended to consult with a professional mechanic for a proper diagnosis and repair.


What causes the P0019 code?

The P0019 fault code indicates a problem with the correlation between the crankshaft position and the camshaft position on bank 2 sensor B. This error can be caused by several factors, including:

  1. Faulty camshaft or crankshaft position sensor: A malfunctioning sensor can provide inaccurate data, leading to a correlation error.

  2. Timing chain or belt issues: If the timing chain or belt is worn, stretched, or improperly installed, it can throw off the synchronization between the crankshaft and camshaft.

  3. Engine mechanical problems: Issues such as a damaged or misaligned camshaft or crankshaft can also cause a correlation error.

  4. Electrical problems: Loose or damaged wiring, connectors, or control module issues can disrupt the signals between the sensors and result in the P0019 code.

  5. Oil flow or pressure problems: Insufficient or contaminated oil can affect the performance of the camshaft or crankshaft position sensors, leading to a correlation fault.

If you encounter the P0019 fault code, it is advisable to have a professional mechanic diagnose and repair the issue, as it requires specialized knowledge and equipment.

Possible Solutions

How to fix P0019?

To fix the P0019 fault code, which indicates a crankshaft position-camshaft position correlation problem in Bank 2 Sensor B, you can follow these steps:

  1. Check the wiring and connections: Inspect the wiring harness and connector for any damage, loose connections, or corrosion. Repair or replace any damaged components as necessary.

  2. Verify oil levels and quality: Ensure the engine has sufficient oil and that it is in good condition. Low oil levels or dirty oil can affect the performance of the camshaft position sensor. Change the oil if necessary.

  3. Inspect the camshaft position sensor: Check the camshaft position sensor for any signs of damage or wear. Clean the sensor and its mounting surface. If the sensor is faulty or worn out, replace it with a new one.

  4. Inspect the crankshaft position sensor: Similarly, inspect the crankshaft position sensor for any damage or wear. Clean the sensor and its mounting surface. If the sensor is faulty or worn out, replace it with a new one.

  5. Check the timing chain/belt: The P0019 code can also be triggered if the timing chain or belt is stretched, damaged, or improperly aligned. Inspect the timing components and replace any faulty parts. Ensure proper alignment according to the manufacturer's specifications.

  6. Inspect the engine for mechanical issues: Any mechanical issues with the engine, such as a misaligned timing gear or a damaged crankshaft, can cause the P0019 code. Perform a thorough inspection of the engine components and repair or replace any damaged parts.

  7. Clear the fault code and test: After performing the necessary repairs, clear the fault code using a diagnostic tool or by disconnecting the battery for a few minutes. Start the engine and monitor for the code reappearing. If the code does not return, the issue has likely been resolved.

It is important to note that diagnosing and fixing the P0019 fault code may require advanced mechanical knowledge and specialized tools. If you are uncertain or uncomfortable with any of the steps, it is recommended to seek assistance from a professional mechanic.