P0017 Fault Code

Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0017 fault code refers to a problem with the correlation between the crankshaft position sensor and the camshaft position sensor on Bank 1 Sensor B. In simpler terms, it means that there is a timing issue between the rotation of the crankshaft and the movement of the camshaft on the specific cylinder bank and sensor.

This code can be triggered due to various reasons, including a faulty crankshaft or camshaft position sensor, incorrect timing belt or chain installation, worn timing components, or engine oil issues. It is important to diagnose and address this issue promptly to prevent potential engine damage or poor performance.

To resolve the P0017 code, you may consider the following steps:

1. Inspect and replace the crankshaft and camshaft position sensors if they are faulty. These sensors monitor the position and speed of the crankshaft and camshafts, and if they are not functioning properly, it can lead to timing issues.

2. Check the timing components, such as the timing belt or chain, tensioners, and guides. Ensure they are properly installed, in good condition, and not excessively worn. Replace any components that show signs of damage or wear.

3. Verify the engine oil level and quality. Low or dirty engine oil can affect the timing system's performance. Make sure the engine is filled with the correct oil and follow the manufacturer's recommendations for oil change intervals.

4. Clear the fault code from the vehicle's onboard diagnostic system using a scan tool. If the issue has been resolved, the code should not reappear.

It is recommended to consult a professional mechanic or technician who can accurately diagnose the issue and perform the necessary repairs. They will have the expertise and tools required to address the P0017 fault code effectively.

What are the symptoms of the P0017 code?

The P0017 fault code indicates a problem with the correlation between the crankshaft position sensor and the camshaft position sensor on bank 1 sensor B. This issue can cause various symptoms in a vehicle, including:

• Engine misfire or rough idle: The timing of the engine can be affected by the improper correlation between the crankshaft and camshaft, leading to a misfire or rough running condition at idle.

• Reduced engine performance: The timing plays a crucial role in the engine's combustion process. If the correlation between the crankshaft and camshaft is off, it can result in reduced engine power and performance.

• Illuminated check engine light: The P0017 fault code triggers the check engine light to illuminate on the dashboard. This serves as an indicator that there is a problem with the crankshaft-camshaft correlation.

• Increased fuel consumption: An improper correlation between the crankshaft and camshaft can disrupt the fuel delivery and combustion process. This can lead to a decrease in fuel efficiency and increased fuel consumption.

• Engine stalling: In severe cases, where the correlation is significantly off, the engine may stall while driving or fail to start altogether.

If you are experiencing any of these symptoms and have retrieved the P0017 fault code, it is recommended to have your vehicle inspected and diagnosed by a qualified mechanic. They will be able to accurately determine the cause of the issue and perform the necessary repairs or adjustments to restore proper operation.

What causes the P0017 code?

The P0017 fault code on cars is caused by a crankshaft position - camshaft position correlation issue on bank 1 sensor B. This means that the alignment between the crankshaft and camshaft is not in sync. Possible causes of this fault code include:

1. Timing chain or belt issues: A worn or damaged timing chain or belt can affect the alignment of the crankshaft and camshaft.

2. Faulty camshaft or crankshaft sensor: A malfunctioning sensor can provide incorrect readings and cause the correlation issue.

3. Engine timing problems: Incorrect engine timing due to a faulty timing gear or pulley can lead to a P0017 fault code.

4. Wiring or connector problems: Damaged or loose wiring, as well as faulty connectors, can affect the signal between the sensors and the engine control module (ECM).

5. ECM software update: Sometimes, a software update for the ECM may be required to correct the correlation issue.

It is recommended to consult a professional mechanic or use a diagnostic tool to accurately diagnose and address the cause of the P0017 fault code.

How to fix P0017?

To fix the P0017 fault code on cars, follow these steps:

1. Check the timing chain or belt: Inspect the timing components for any signs of wear or damage. Replace them if necessary.

2. Inspect the camshaft and crankshaft sensors: Ensure that the sensors are properly aligned and functioning correctly. Clean or replace the sensors if needed.

3. Check for wiring or connector issues: Inspect the wiring and connectors associated with the camshaft and crankshaft sensors for any damage or corrosion. Repair or replace as necessary.

4. Verify the engine oil level and quality: Low oil level or poor quality oil can affect the timing system. Make sure the engine oil is at the proper level and replace it if needed.

5. Perform a relearn procedure: Some vehicles may require a relearn procedure to reset the camshaft and crankshaft timing. Consult the vehicle's service manual for the specific relearn procedure.

6. Clear the fault code: Once the necessary repairs or adjustments have been made, use a scan tool to clear the fault code and reset the Check Engine Light.

Note: It is recommended to consult a professional mechanic or refer to the vehicle's service manual for specific instructions and procedures related to your car make and model.