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

Quick Answer

The P0390 Ford code indicates a problem with the Camshaft Position Sensor 'B' Circuit in Bank 2 of the vehicle's engine. Common causes include Faulty camshaft position sensor, Damaged wiring or connectors, Corrosion or poor electrical connections. 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 Ford indicates Camshaft Position Sensor 'B' Circuit Bank 2.
Common causes
Common causes include Faulty camshaft position sensor, Damaged wiring or connectors, Corrosion or poor electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0390 Ford Description

The P0390 Ford code indicates a problem with the Camshaft Position Sensor 'B' Circuit in Bank 2 of the vehicle's engine. This sensor plays a crucial role in monitoring the position of the camshaft, which is essential for proper fuel injection timing and ignition system operation. When this sensor malfunctions or fails, it can lead to issues with engine performance, fuel efficiency, and overall drivability.

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

Common Causes of P0390 Ford

  1. Faulty camshaft position sensor
  2. Damaged wiring or connectors
  3. Corrosion or poor electrical connections
  4. Sensor circuit malfunction
  5. Engine timing belt or chain issues

Symptoms of P0390 Ford

  1. Engine misfires
  2. Rough idling or stalling
  3. Reduced power and acceleration
  4. Check Engine Light illuminated
  5. Engine hesitation or jerking during acceleration

How to Fix P0390 Ford

  1. Diagnose the code using a scan tool to pinpoint the exact cause of the issue.
  2. Inspect the camshaft position sensor, wiring, and connectors for any visible damage or corrosion.
  3. Replace the faulty camshaft position sensor if necessary.
  4. Repair or replace any damaged wiring or connectors.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0390 Ford

The cost of repairing the Camshaft Position Sensor 'B' Circuit Bank 2 issue can vary depending on the specific make and model of the vehicle, as well as the location and labor rates of the auto repair shop. In general, the parts for this repair can range from $50 to $150, while labor costs can range from $100 to $200. Therefore, the total cost for this repair could be anywhere from $150 to $350. It's recommended to obtain quotes from local repair shops to get a more accurate estimate for your specific situation.

What does this mean?

Tech Notes for P0390 Ford

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

Need more information about the P0390 Ford code?

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Information for Specific Ford Models

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.

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