Engine-CodesFord – P0390 2010 Ford Fusion

P0390 2010 Ford Fusion Code - Camshaft Position Sensor 'B' Circuit Bank 2

Quick Answer

The P0390 diagnostic trouble code (DTC) indicates a problem with the Camshaft Position Sensor 'B' Circuit Bank 2 in a 2010 Ford Fusion. Common causes include Faulty camshaft position sensor, Damaged wiring or connectors in the camshaft position sensor circuit, ECM malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0390 2010 Ford Fusion indicates Camshaft Position Sensor 'B' Circuit Bank 2.
Common causes
Common causes include Faulty camshaft position sensor, Damaged wiring or connectors in the camshaft position sensor circuit, ECM malfunction.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0390 2010 Ford Fusion Description

The P0390 diagnostic trouble code (DTC) indicates a problem with the Camshaft Position Sensor 'B' Circuit Bank 2 in a 2010 Ford Fusion. The camshaft position sensor is a crucial component in the engine management system, responsible for monitoring the position of the camshaft(s) and sending this information to the engine control module (ECM). This data is essential for determining the precise timing of the engine's valves, fuel injection, and ignition.

OBDII Code P0390 2010 Ford Fusion - Camshaft Position Sensor 'B' Circuit Bank 2
P0390 2010 Ford Fusion Code - Camshaft Position Sensor 'B' Circuit Bank 2

Common Causes of P0390 2010 Ford Fusion

  1. Faulty camshaft position sensor
  2. Damaged wiring or connectors in the camshaft position sensor circuit
  3. ECM malfunction
  4. Timing chain or belt issues affecting camshaft timing
  5. Engine overheating leading to sensor damage

Symptoms of P0390 2010 Ford Fusion

  1. Rough idling or engine stalling
  2. Decreased fuel efficiency
  3. Engine misfires
  4. Difficulty starting the vehicle
  5. Check Engine Light illuminated on the dashboard

How to Fix P0390 2010 Ford Fusion

  1. Use an OBD-II scanner to confirm the P0390 code and diagnose the specific issue with the camshaft position sensor 'B' on Bank 2.
  2. Inspect the wiring and connectors associated with the sensor for any signs of damage, corrosion, or loose connections.
  3. Test the camshaft position sensor using a multimeter to verify if it is functioning correctly or needs replacement.
  4. Replace the faulty camshaft position sensor if necessary, ensuring proper alignment and connection to the ECM.
  5. Clear the DTC from the ECM memory and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P0390 2010 Ford Fusion

The typical repair costs for addressing a P0390 code in a 2010 Ford Fusion can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. This estimate includes the price of a new camshaft position sensor, potential wiring repairs, and diagnostic fees. It is advisable to consult with a professional mechanic or auto repair shop for a more accurate cost estimate, as rates can vary based on location and other factors. Remember to factor in additional costs such as taxes and shop fees when budgeting for this repair.

Tech Notes for P0390 2010 Ford Fusion

Sometimes and in some models, low battery voltage or a weak starter can trigger a Camshaft Position Sensor code.

When is the Code Detected?

The camshaft position sensor signal is not detected by the Engine Control Module (ECM) during the first few seconds of engine cranking

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0390 2010 Ford Fusion Code

1. What are the common symptoms of OBDII code P0390 in a 2010 Ford Fusion?

- Common symptoms include engine misfires, rough idling, poor acceleration, and stalling.

2. What does the OBDII code P0390 on a 2010 Ford Fusion indicate?

- The code P0390 indicates a problem with the Camshaft Position Sensor 'B' Circuit Bank 2.

3. What are the possible causes of OBDII code P0390 in a 2010 Ford Fusion?

- Possible causes include a faulty camshaft position sensor, wiring issues, sensor connector problems, or a malfunctioning PCM.

4. How can I diagnose the Camshaft Position Sensor 'B' Circuit Bank 2 issue in my 2010 Ford Fusion?

- To diagnose the issue, you can use an OBDII scanner to retrieve the trouble code, visually inspect the sensor and wiring, and perform electrical tests on the sensor.

5. Can I drive my 2010 Ford Fusion with OBDII code P0390?

- It is not recommended to drive your vehicle with code P0390 as it can lead to further engine damage or sudden breakdowns.

6. How do I repair the Camshaft Position Sensor 'B' Circuit Bank 2 issue in my 2010 Ford Fusion?

- The repair may involve replacing the camshaft position sensor, repairing or replacing damaged wiring, ensuring proper sensor connection, or reprogramming the PCM.

7. Is it possible to reset OBDII code P0390 in a 2010 Ford Fusion without fixing the issue?

- While you can clear the code with an OBDII scanner, it is essential to address the underlying problem to prevent it from recurring.

8. Can a DIY enthusiast fix the Camshaft Position Sensor 'B' Circuit Bank 2 problem in a 2010 Ford Fusion?

- Depending on your skill level and access to tools, you may be able to replace the sensor or address wiring issues yourself. However, professional diagnosis is recommended.

9. How much does it cost to repair OBDII code P0390 in a 2010 Ford Fusion at a dealership?

- The cost can vary but typically includes diagnostic fees, parts, and labor. It's advisable to get a detailed estimate from the dealership.

10. How frequently does the Camshaft Position Sensor 'B' Circuit Bank 2 issue occur in 2010 Ford Fusion vehicles?

- While it's not uncommon, the frequency of this issue can vary depending on the vehicle's maintenance history and driving conditions.

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