P1347 Code - Misfire Cylinder 3 With Fuel Cut-off
Quick Answer
The diagnostic trouble code P1347 indicates a misfire in cylinder 3 with fuel cut-off. Common causes include Faulty ignition system: Problems with the ignition coil, spark plug, or spark plug wires can lead to a misfire, Fuel delivery issues: Clogged fuel injectors, a malfunctioning fuel pump, or a dirty fuel filter can disrupt the fuel supply to the cylinder, Compression problems: Low compression in the cylinder due to worn piston rings or a leaking head gasket can cause a misfire. 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
- P1347 indicates Misfire Cylinder 3 With Fuel Cut-off.
- Common causes
- Common causes include Faulty ignition system: Problems with the ignition coil, spark plug, or spark plug wires can lead to a misfire, Fuel delivery issues: Clogged fuel injectors, a malfunctioning fuel pump, or a dirty fuel filter can disrupt the fuel supply to the cylinder, Compression problems: Low compression in the cylinder due to worn piston rings or a leaking head gasket can cause a misfire.
- 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 P1347 Description
The diagnostic trouble code P1347 indicates a misfire in cylinder 3 with fuel cut-off. This means that the engine's computer has detected a misfire in the third cylinder of the engine, leading to the fuel supply to that cylinder being cut off to prevent any damage. A misfire can be caused by various factors such as a lack of spark, fuel, or compression in the cylinder. When a misfire occurs, it can lead to poor engine performance, reduced fuel efficiency, and potential long-term damage to the engine if not addressed promptly.
Common Causes of P1347
- Faulty ignition system: Problems with the ignition coil, spark plug, or spark plug wires can lead to a misfire.
- Fuel delivery issues: Clogged fuel injectors, a malfunctioning fuel pump, or a dirty fuel filter can disrupt the fuel supply to the cylinder.
- Compression problems: Low compression in the cylinder due to worn piston rings or a leaking head gasket can cause a misfire.
- Engine timing issues: Incorrect ignition timing or valve timing can result in a misfire in cylinder 3.
- Engine control module (ECM) malfunction: A faulty ECM may not be able to properly control the fuel injection and ignition timing, leading to a misfire.
Symptoms of P1347
- Rough idle: The engine may run unevenly or shake at idle due to the misfire in cylinder 3.
- Loss of power: The vehicle may experience a decrease in power and acceleration as a result of the misfiring cylinder.
- Engine hesitation: Hesitation or stumbling during acceleration can be a symptom of a misfire.
- Increased fuel consumption: A misfire can lead to inefficient combustion, causing the engine to burn more fuel than necessary.
- Check Engine Light: The check engine light may illuminate on the dashboard to alert the driver to the issue.
How to Fix P1347
- Diagnose the issue: Use a scan tool to read the trouble code and perform further diagnostics to pinpoint the exact cause of the misfire in cylinder 3.
- Inspect and replace ignition components: Check the ignition coil, spark plug, and spark plug wires for any signs of damage or wear, and replace them if necessary.
- Check fuel delivery system: Inspect the fuel injectors, fuel pump, and fuel filter for any issues that may be affecting fuel delivery to the cylinder, and address any problems found.
- Perform a compression test: Test the compression in cylinder 3 to determine if there are any issues with the engine's internal components that may be causing the misfire.
- Check engine timing: Verify that the ignition timing and valve timing are set correctly, and adjust as needed to ensure proper engine operation.
Cost to Fix P1347
The cost of repairing a misfire in cylinder 3 with fuel cut-off can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair costs for this type of problem can range from $100 to $500, including parts and labor. It's important to keep in mind that additional diagnostic time may be needed to accurately identify the root cause of the misfire, which can affect the overall repair cost. It is recommended to consult with a trusted mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model, as well as your location.
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Code P1347 Information for Specific Makes
- P1347 Audi — Bank 2 Camshaft Position/Crankshaft Position Sensor Wrong Allocation
- P1347 BMW — Misfire Cylinder 3 With Fuel Cut-off
- P1347 Hyundai — #7 Ion Line Open
- P1347 MINI — Misfire Cylinder 3 With Fuel Cut-off
- P1347 Volkswagen — Bank 2 Camshaft Position/Crankshaft Position Sensor Wrong Allocation
Frequently Asked Questions about P1347 Code
1. What are the common symptoms of OBDII code P1347 (Misfire Cylinder 3 With Fuel Cut-off)?
- Common symptoms include rough idling, engine misfires, loss of power, and illuminated Check Engine Light.
2. What are the potential causes of OBDII code P1347?
- Possible causes of this code include a faulty ignition coil, spark plug, fuel injector, vacuum leak, or wiring issue.
3. How can I diagnose the cause of OBDII code P1347?
- Diagnose the issue by checking the ignition system components, inspecting the fuel injector, performing a compression test, and scanning for other related trouble codes.
4. Can a dirty fuel injector cause OBDII code P1347?
- Yes, a dirty or clogged fuel injector can cause cylinder misfires leading to the triggering of code P1347.
5. How can I repair OBDII code P1347?
- Repair methods may include replacing the faulty ignition coil, spark plug, or fuel injector, fixing any vacuum leaks, and ensuring proper wiring connections.
6. Is it safe to continue driving with OBDII code P1347 present?
- It is not recommended to drive with this code active, as it can lead to further engine damage and decreased fuel efficiency.
7. How can I prevent OBDII code P1347 from recurring?
- Regular maintenance, such as timely spark plug replacement, using high-quality fuel, and addressing engine issues promptly, can help prevent this code from reoccurring.
8. Can a misfire in cylinder 3 with fuel cut-off cause long-term damage to the engine?
- Yes, prolonged misfires can lead to damage to the catalytic converter, engine components, and reduced overall engine performance if left unresolved.
9. Will resetting the Check Engine Light resolve OBDII code P1347?
- Resetting the light may temporarily turn it off, but if the underlying issue causing the misfire is not fixed, the code is likely to reappear.
10. How much does it typically cost to repair OBDII code P1347 at a mechanic?
- The cost of repair can vary depending on the specific cause of the misfire, but it may range from $100 to $500 or more, including parts and labor.
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