P047F Volkswagen Code - Exhaust Pressure Control Valve 'A' Stuck Open
Quick Answer
Exhaust Back Pressure Regulator - Is a variable position valve that controls exhaust back pressure during cold ambient temperatures to increase cab heat and decrease the amount of time needed to defrost the windshield. Common causes include Faulty Exhaust Back Pressure Valve, Exhaust Back Pressure Valve harness is open or shorted, Exhaust Back Pressure Valve 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
- P047F Volkswagen indicates Exhaust Pressure Control Valve 'A' Stuck Open.
- Common causes
- Common causes include Faulty Exhaust Back Pressure Valve, Exhaust Back Pressure Valve harness is open or shorted, Exhaust Back Pressure Valve 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 P047F Volkswagen Description
Upon each initial engine start-up, the ECM exercises the exhaust back pressure valve by commanding it to cycle on and off once. If upon start-up the temperature of intake air sensed by the Intake Air Temperature (IAT) sensor is < 37°F (5°C) and the oil temperature sensed by the Engine Oil Temperature (EOT) sensor is between 32°-140°F (0-60°C) it will continue to keep the back pressure valve partially closed. As the oil temperature rises during engine operation, the ECM will control the valve in response to the rising oil temperature.
What are the Possible Causes of the DTC P047F Volkswagen?
- Faulty Exhaust Back Pressure Valve
- Exhaust Back Pressure Valve harness is open or shorted
- Exhaust Back Pressure Valve circuit poor electrical connection
How to Fix the DTC P047F Volkswagen?
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
2009 Volkswagen Jetta
2009 Volkswagen Jetta Wagon
2010-2013 Volkswagen Jetta
2010-2013 Volkswagen Golf
2010-2013 Volkswagen Jetta SportWagen
2013 Volkswagen Beetle
2013 Volkswagen Beetle Convertible
2012-2013 Volkswagen Passat
Volkswagen Factory Service Bulletin OBDII Code P047F
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P047F Volkswagen 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 P047F Volkswagen Code
1. What are the common symptoms of OBDII code P047F in a Volkswagen?
- Common symptoms include reduced engine power, decreased fuel efficiency, and the illumination of the Check Engine Light.
2. What does the OBDII code P047F Volkswagen indicate?
- The code indicates that the exhaust pressure control valve 'A' is stuck open, causing issues with the vehicle's exhaust pressure regulation.
3. What are the possible causes of the exhaust pressure control valve 'A' being stuck open in a Volkswagen?
- Possible causes include a faulty exhaust pressure control valve, electrical issues, clogged or damaged exhaust components, or a malfunctioning engine control module.
4. How can I diagnose the cause of OBDII code P047F in my Volkswagen?
- Diagnosing the issue typically involves checking the exhaust pressure control valve for proper operation, inspecting the wiring and connectors, and performing a thorough examination of the exhaust system.
5. How serious is OBDII code P047F in a Volkswagen?
- While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential damage to the engine or exhaust system.
6. Can I drive my Volkswagen with OBDII code P047F?
- It is generally not recommended to drive the vehicle with this code present, as it can lead to decreased performance and fuel efficiency. It's best to have the issue diagnosed and repaired as soon as possible.
7. How can I repair OBDII code P047F in my Volkswagen?
- Repair options may include replacing the exhaust pressure control valve, repairing any damaged wiring or connectors, cleaning or replacing clogged exhaust components, or reprogramming the engine control module.
8. Can I reset the Check Engine Light after fixing OBDII code P047F in my Volkswagen?
- Yes, you can reset the Check Engine Light using an OBDII scanner after the issue has been resolved to clear the error code from the system.
9. Is it common for the exhaust pressure control valve to get stuck open in Volkswagens?
- While it may not be a common issue, the exhaust pressure control valve can malfunction in any vehicle, including Volkswagens, leading to the OBDII code P047F.
10. How much does it typically cost to repair OBDII code P047F in a Volkswagen?
- The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
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