P0391 KIA 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 KIA 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 KIA 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 KIA?
- 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 KIA?
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 KIA 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 KIA Code
1. What are common symptoms of OBDII code P0391 in a KIA related to the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- Common symptoms include rough idling, poor engine performance, stalling, and difficulty starting the vehicle.
2. What are some possible causes of the OBDII code P0391 in a KIA related to the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- Possible causes can include a faulty camshaft position sensor, damaged wiring or connectors, a malfunctioning engine control module (ECM), or timing chain issues.
3. How can I diagnose the OBDII code P0391 in my KIA for the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 problem?
- Diagnosis typically involves using an OBDII scanner to read the trouble code, checking the camshaft position sensor and its wiring for damage, and testing the sensor's functionality.
4. What are some repair tips for fixing the OBDII code P0391 in a KIA related to the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- Repair tips may include replacing the camshaft position sensor, repairing damaged wiring or connectors, resetting the ECM, or addressing any timing chain problems.
5. Can I continue driving my KIA with the OBDII code P0391 related to the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- It is not recommended to continue driving the vehicle with this issue as it can lead to further engine damage and potential safety hazards. It's best to address the problem promptly.
6. How much does it typically cost to repair the OBDII code P0391 in a KIA related to the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- The cost of repair can vary depending on the exact cause of the issue and labor rates, but it may range from around $100 to $300 for parts and labor.
7. Are there any recalls or technical service bulletins (TSBs) related to the OBDII code P0391 in KIA vehicles with the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- It's recommended to check with your local dealership or KIA manufacturer for any recalls or TSBs related to this specific problem to see if there are any relevant updates or solutions available.
8. How often does the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue occur in KIA vehicles?
- While it's not one of the most common issues, the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 problem can occur in KIA vehicles, especially in older models or those with high mileage.
9. Can a DIY enthusiast fix the OBDII code P0391 in a KIA related to the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- Depending on your skill level and access to tools, it may be possible to address this issue yourself by following repair guides or tutorials. However, it's recommended to consult with a professional if unsure.
10. What are the long-term effects of ignoring the OBDII code P0391 in a KIA related to the Camshaft Position Sensor 'B' Circuit Range/Performance Bank 2 issue?
- Ignoring this issue can lead to more severe engine problems, decreased fuel efficiency, and potential engine failure, which can be costly to repair in the long run.
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