Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer found a problem with a sensor that checks the pressure in the exhaust system. The sensor is not sending steady signals, which is like a light bulb flickering on and off.
The P047E code is triggered when the Powertrain Control Module (PCM) detects an intermittent or erratic signal from the exhaust pressure sensor 'B'.
The exhaust pressure sensor 'B' is responsible for monitoring the pressure within the exhaust system. This sensor sends data to the PCM to help control emissions and engine performance. An intermittent or erratic signal indicates that the sensor is not providing consistent readings, which can affect engine efficiency and emissions control.
• Check Engine Light is on
• Reduced engine performance
• Increased emissions
• Faulty exhaust pressure sensor
• Wiring issues such as loose connections or damaged wires
• Exhaust leaks affecting sensor readings
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code
• Inspect the exhaust pressure sensor and its wiring
• Check for exhaust leaks near the sensor
• Replace the faulty exhaust pressure sensor
• Repair or replace damaged wiring
• Fix any exhaust leaks
• OBD-II scanner
• Multimeter
• Wrench set
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram 2500
• Regularly inspect exhaust system components
• Ensure proper maintenance of sensors
• Avoid driving with exhaust leaks
Sensor Issue
• Have the vehicle inspected by a professional
• Do not ignore the Check Engine Light
• Address the issue promptly to avoid further damage
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
The P047E code has been reported in vehicles with diesel engines where exhaust pressure sensors are used to monitor emissions.
Moderate – It should be addressed soon to prevent potential damage to the engine or emissions system.
Driving with a malfunctioning exhaust system can increase emissions and may not comply with emissions regulations.
• Engine running
• Vehicle at operating temperature
The exhaust pressure sensor is typically located on the exhaust manifold or near the turbocharger.
Q: Can I drive with a P047E code?
A: It's not recommended to drive for extended periods with this code, as it can lead to increased emissions and potential engine performance issues.
Q: How do I reset the P047E code?
A: After repairs, you can reset the code using an OBD-II scanner. However, if the issue isn't fixed, the code may return.
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