P0391 Hyundai Code - Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2
Quick Answer
The P0391 diagnostic trouble code (DTC) for Hyundai vehicles indicates a problem with the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2. Common causes include Faulty camshaft position sensor, Damaged wiring or connectors, Timing belt or chain issues. 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 Hyundai indicates Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2.
- Common causes
- Common causes include Faulty camshaft position sensor, Damaged wiring or connectors, Timing belt or chain issues.
- 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.
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Code P0391 Hyundai Description
The P0391 diagnostic trouble code (DTC) for Hyundai vehicles indicates a problem with the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2. The camshaft position sensor is a crucial component of the engine management system, responsible for monitoring the position of the camshaft. In this case, Bank 2 refers to the side of the engine that does not contain the number one cylinder.
Common Causes of P0391 Hyundai
- Faulty camshaft position sensor
- Damaged wiring or connectors
- Timing belt or chain issues
- Malfunctioning Engine Control Module (ECM)
- Mechanical engine problem affecting camshaft timing
Symptoms of P0391 Hyundai
- Engine misfires or rough idling
- Decreased fuel efficiency
- Difficulty starting the engine
- Engine stalling
- Illumination of the check engine light
How to Fix P0391 Hyundai
- Diagnose the specific cause of the P0391 code using a scan tool to read live data and check for any related codes.
- Inspect the camshaft position sensor, wiring, and connectors for visible damage or corrosion. Replace any faulty components.
- Check the timing belt or chain for proper tension, alignment, and wear. Replace if necessary.
- Clear the DTC and reset the ECM to see if the code reappears after the repair.
- Test drive the vehicle to ensure the issue has been resolved and all systems are functioning correctly.
Cost to Fix P0391 Hyundai
The typical repair costs for addressing a P0391 code can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It is important to keep in mind that the actual cost may vary based on the location, vehicle make and model, and the rates charged by the auto repair shop. Additionally, diagnosis time and labor rates can also impact the overall cost of the repair. It is recommended to consult with a qualified mechanic or shop to get an accurate estimate for addressing this issue.
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