P0391 2010 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 2010 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 2010 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 2010 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 2010 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 2010 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 2010 Ford Fusion Code
What does the OBDII code P0391 mean for a 2010 Ford Fusion?
P0391 indicates a problem with the Camshaft Position Sensor 'B' Circuit Range/Performance on Bank 2, meaning the sensor is not functioning within its expected parameters.
What are the symptoms of code P0391 in a 2010 Ford Fusion?
Common symptoms include engine misfires, rough idle, reduced fuel efficiency, stalling, and the Check Engine Light illuminating.
What causes the P0391 code to appear in a 2010 Ford Fusion?
Causes include a faulty camshaft position sensor, damaged wiring or connectors, timing chain issues, or a problem with the engine control module (ECM).
Can I drive my 2010 Ford Fusion with a P0391 code?
While the vehicle may still be operable, driving with this code can lead to further engine damage or performance issues, so repairs should be addressed promptly.
How do you diagnose the P0391 code on a 2010 Ford Fusion?
Diagnosing includes using an OBDII scanner to confirm the code, inspecting the camshaft position sensor, checking wiring and connectors, and verifying the timing system's integrity.
How do you fix the P0391 code on a 2010 Ford Fusion?
Repairs may involve replacing the camshaft position sensor, repairing damaged wiring or connectors, resetting the ECM, or addressing timing chain issues.
How much does it cost to fix the P0391 code on a 2010 Ford Fusion?
The repair cost can range from $100 to $300, depending on whether the camshaft position sensor needs replacement or if additional repairs are required.
Can a dirty or contaminated camshaft position sensor cause code P0391?
Yes, a dirty or contaminated sensor can disrupt signal transmission, leading to this code.
What is Bank 2 in a 2010 Ford Fusion?
Bank 2 refers to the side of the engine opposite Bank 1, typically containing cylinders 2, 4, and 6 in a V6 engine configuration.
Does resetting the ECM fix the P0391 code?
Resetting the ECM may clear the code temporarily, but the underlying issue must be repaired to prevent the code from returning.
Discuss the causes and fixes for P0391 2010 Ford Fusion OBDII Code
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