Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a sensor that checks the pressure of the exhaust gases. This code means the sensor is sending a signal that's too high, like it's saying the pressure is too strong.
The P047D code indicates that the Exhaust Pressure Sensor 'B' is reporting a voltage level that is higher than the expected range. This could be due to a faulty sensor or an issue in the sensor circuit.
The Exhaust Pressure Sensor 'B' is responsible for monitoring the pressure in the exhaust system. The Engine Control Module (ECM) uses this data to optimize engine performance and emissions. A 'circuit high' condition means the sensor is reporting a voltage that is higher than the acceptable threshold, which could be due to a short circuit, faulty sensor, or wiring issues.
• Check Engine Light is on
• Decreased engine performance
• Possible increase in emissions
• Faulty exhaust pressure sensor
• Wiring issues in the sensor circuit
• Short circuit in the sensor wiring
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Test the exhaust pressure sensor with a multimeter.
• Replace the faulty exhaust pressure sensor.
• Repair or replace damaged wiring or connectors.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect exhaust system components.
• Ensure wiring and connectors are free from corrosion.
• Perform routine maintenance checks.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid driving with this issue for extended periods.
Check with your vehicle's manufacturer for warranty coverage on emissions-related components.
This code has been reported in vehicles with diesel engines due to the complexity of their exhaust systems.
Moderate – It should be addressed soon to avoid potential engine performance issues.
Driving with a faulty exhaust pressure sensor can lead to increased emissions, which may not comply with local environmental regulations.
• Engine at operating temperature
• Vehicle idling
The exhaust pressure sensor is typically located on or near the exhaust manifold or turbocharger.
Q: Can I drive my car with a P047D code?
A: It's possible, but not recommended as it may lead to reduced engine performance and increased emissions.
Q: How do I know if my exhaust pressure sensor is bad?
A: Common signs include a Check Engine Light, poor engine performance, and possibly increased emissions.
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