Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that measures the pressure in the car's exhaust system. It's like when a balloon can't tell how much air is inside it.
The P0470 code indicates an issue with the exhaust pressure sensor circuit, which monitors the pressure in the exhaust system to ensure optimal engine performance and emissions control.
The exhaust pressure sensor measures the pressure of the exhaust gases leaving the engine. This information is used by the engine control module (ECM) to adjust the air-fuel mixture and ensure efficient combustion. A fault in the sensor or its circuit can lead to incorrect readings and affect engine performance.
• Check Engine Light is on
• Reduced engine performance
• Increased exhaust emissions
• Faulty exhaust pressure sensor
• Damaged or corroded wiring/connectors
• Exhaust leaks affecting sensor readings
Exhaust Pressure Sensor: A device that measures the pressure of exhaust gases in the exhaust system.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the exhaust pressure sensor and its wiring for damage.
• Perform a voltage test on the sensor circuit.
• Replace the faulty exhaust pressure sensor.
• Repair or replace damaged wiring/connectors.
• Seal any exhaust leaks.
• OBD-II scanner
• Multimeter
• Basic hand tools (screwdrivers, wrenches)
$100 - $300
Moderate
• Ford F-Series
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect exhaust system components.
• Ensure wiring is free from corrosion.
• Address any exhaust leaks promptly.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional.
• Avoid driving the vehicle hard until repaired.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
The P0470 code has been associated with issues in diesel engines where exhaust pressure is critical for turbocharger operation.
Moderate – While the vehicle may still be drivable, it should be repaired soon to prevent further issues.
Driving with a malfunctioning exhaust sensor can increase emissions and may not comply with local emissions regulations.
• Engine at operating temperature
• Vehicle idling
The exhaust pressure sensor is typically located near the exhaust manifold or turbocharger.
Q: Can I drive with a P0470 code?
A: You can drive short distances, but it's best to fix the issue soon to avoid potential damage or increased emissions.
Q: How do I reset the P0470 code?
A: After repairs, use an OBD-II scanner to clear the code, or disconnect the battery for a few minutes.
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