P0391 2011 Ford Fusion Code - Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2
Quick Answer
The Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection. 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
- P0391 2011 Ford Fusion indicates Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2.
- Common causes
- Common causes include Faulty Camshaft Position Sensor, Camshaft Position Sensor harness is open or shorted, Camshaft Position Sensor circuit poor electrical connection.
- 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.
Code P0391 2011 Ford Fusion Description
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
What are the Possible Causes of the DTC P0391 2011 Ford Fusion?
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
How to Fix the DTC P0391 2011 Ford Fusion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0391 2011 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0391 2011 Ford Fusion Code
1. What are the common symptoms of OBDII code P0391 in a 2011 Ford Fusion?
- Common symptoms include rough idling, engine stalling, decreased fuel efficiency, and difficulty starting the vehicle.
2. What can cause OBDII code P0391 to trigger in a 2011 Ford Fusion?
- The code is typically triggered by issues with the camshaft position sensor 'B', wiring problems, or sensor circuit malfunction in Bank 2.
3. How can I diagnose the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue in my 2011 Ford Fusion?
- Diagnosis involves checking the camshaft position sensor 'B' for proper connection, inspecting related wiring for damage, and using a diagnostic scanner to read the code.
4. Is it safe to continue driving with OBDII code P0391 in a 2011 Ford Fusion?
- It is not recommended to drive with this code as it can lead to potential engine performance issues and further damage if left unaddressed.
5. Can I repair OBDII code P0391 in a 2011 Ford Fusion myself?
- Depending on your mechanical skills, you may be able to replace the camshaft position sensor 'B' or repair wiring issues yourself. However, professional diagnosis and repair are recommended for accurate resolution.
6. Are there any tips for preventing OBDII code P0391 from recurring in a 2011 Ford Fusion?
- Regular maintenance, such as timely sensor replacements and checking for wiring issues, can help prevent the recurrence of this code.
7. How much does it typically cost to repair OBDII code P0391 in a 2011 Ford Fusion?
- The cost of repairing this code can vary based on the extent of the issue, but it may range from $100 to $300 for parts and labor.
8. Will resetting the OBDII system clear the P0391 code in a 2011 Ford Fusion?
- While resetting the system may temporarily clear the code, it will reappear if the underlying issue causing the code is not addressed.
9. Can a faulty camshaft position sensor cause other OBDII codes to trigger in a 2011 Ford Fusion?
- Yes, a faulty camshaft position sensor can cause a range of related OBDII codes to trigger, impacting the engine's performance and efficiency.
10. How long does it take to repair OBDII code P0391 in a 2011 Ford Fusion at a professional auto repair shop?
- The repair time can vary depending on the shop's workload and the exact cause of the issue, but the repair typically takes around 1-2 hours to complete.
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