Quick Answer
P0347 means: The P0347 code signals an issue with the camshaft position sensor A circuit, affecting engine performance.
Can I drive with P0347? Immediate attention is recommended to prevent further engine damage.
Common Questions
What does P0347 mean and how does it affect my car?
The P0347 code indicates that your vehicle's camshaft position sensor A is not functioning correctly. This can lead to poor engine performance, including hesitation, stalling, and reduced fuel efficiency. If ignored, it can cause further damage to your engine, so it's crucial to address it promptly.
What are the most common causes of P0347 and how much does it cost to fix?
The most common cause of P0347 is a faulty camshaft position sensor, which can cost between $150 and $300 to replace. Other causes include damaged wiring and ECM issues, with repair costs varying accordingly. It's important to diagnose the issue accurately to avoid unnecessary expenses.
Can I drive my car with P0347 or should I stop immediately?
While you might be able to drive short distances with the P0347 code, it is not recommended. Continuing to drive can lead to more severe engine problems and safety risks. If you experience symptoms like stalling, it is best to stop driving and have the vehicle inspected.
How can I diagnose P0347 myself using GeekOBD APP?
To diagnose P0347 with GeekOBD APP, start by connecting your device to the vehicle's OBD2 port. Use the app to retrieve codes and examine freeze frame data. Check for any additional codes that may provide context to the P0347 and perform a visual inspection of the camshaft position sensor and wiring.
What vehicles are most commonly affected by P0347?
Commonly affected vehicles include the 2010-2015 Ford Focus, 2008-2015 Honda Accord, and various Nissan models. It's essential to check for any recalls or Technical Service Bulletins (TSBs) related to the camshaft position sensor for your specific make and model.
How can I prevent P0347 from happening again?
Regular maintenance can help prevent P0347. Ensure that your engine oil is changed at recommended intervals to avoid oil contamination. Inspect the wiring and connectors for wear and tear, and consider using high-quality parts when replacing sensors to enhance reliability.
What is P0347?
The P0347 diagnostic trouble code indicates a problem with the camshaft position sensor A circuit. This sensor plays a crucial role in the engine management system by relaying the position of the camshaft to the engine control module (ECM). When the ECM detects a voltage reading from the camshaft position sensor that is outside the expected range, it triggers the P0347 code. This can lead to a variety of engine performance issues, including rough idling, reduced power, and even stalling. In real-world terms, if your vehicle is showing this code, you might notice a lack of acceleration or poor fuel economy. For owners of vehicles like the 2010-2015 Ford Focus, Honda Accord, and various Nissan models, encountering this code can lead to frustrating driving experiences. Ignoring the P0347 code could result in more severe engine problems, making timely diagnosis and repair essential to maintaining vehicle performance and longevity.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0347 is present:
- Check engine light stays on constantly, indicating a persistent issue that needs addressing.
- Engine hesitates during acceleration, leading to a frustrating driving experience and potential safety risks.
- Fuel economy decreased by 10-15%, which can significantly impact your wallet over time.
- Rough idling when stopped at traffic lights, causing vibrations that can be felt inside the vehicle.
- Engine stalling in traffic, which poses a serious safety concern and could lead to accidents.
Possible Causes
Most common causes of P0347 (ordered by frequency):
- Faulty camshaft position sensor (60% likelihood), which may fail due to wear and tear or exposure to heat and oil.
- Damaged wiring or connectors (25% likelihood), which can lead to intermittent signals or loss of communication with the ECM.
- Timing belt/chain issues (10% likelihood), which can affect the camshaft's position and cause miscommunication with the sensor.
- ECM malfunction (3% likelihood), where the vehicle's computer fails to interpret the sensor signals correctly.
- Oil contamination (2% likelihood), which can impair sensor function and lead to incorrect readings.
P0347 Repair Costs
Cost Breakdown by Repair Type
Camshaft Position Sensor Replacement
Replacing the faulty camshaft position sensor with a new one.
- Total: $150 - $300
- Success rate: 90%
Wiring Repair
Repairing damaged wiring or connectors associated with the sensor.
- Total: $50 - $150
- Success rate: 85%
Money-Saving Tips for P0347
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional P0347 Diagnosis Process
Follow these systematic steps to accurately diagnose P0347. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the camshaft position sensor and wiring (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the camshaft position sensor and wiring (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes to see if they return (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs and clear codes to see if they return (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and monitor for symptoms (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and monitor for symptoms (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Ford Focus P0347 Diagnosis and Repair
Vehicle: 2013 Ford Focus, 85,000 miles
Problem: Customer reported a check engine light and rough idling.
Diagnosis: Performed OBD2 scan using GeekOBD APP, confirmed P0347 code. Visual inspection revealed damaged wiring.
Solution: Replaced the camshaft position sensor and repaired the wiring harness.
Cost: $220 (sensor: $150, wiring repair: $70)
Result: Post-repair road test showed normal engine operation with no reoccurrence of the code.
Case Study 2: Honda Accord Camshaft Sensor Issue
Vehicle: 2012 Honda Accord, 90,000 miles
Problem: Engine hesitation and check engine light illuminated.
Diagnosis: Scanned for codes, found P0347. Further testing of the sensor showed it was faulty.
Solution: Replaced the camshaft position sensor and cleared codes.
Cost: $180 (sensor: $150, labor: $30)
Result: Engine performance returned to normal, and customer reported improved fuel economy.