P1403 Mercury Code - Differential Pressure Feedback Electronic Sensor Hoses Reversed
Quick Answer
The P1403 code for Mercury vehicles indicates that the Differential Pressure Feedback Electronic (DPFE) sensor hoses are reversed. Common causes include Incorrect installation of the DPFE sensor hoses during a previous repair or maintenance, Damage to the hoses due to wear and tear or heat exposure, Presence of debris or blockages in the hoses. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P1403 Mercury indicates Differential Pressure Feedback Electronic Sensor Hoses Reversed.
- Common causes
- Common causes include Incorrect installation of the DPFE sensor hoses during a previous repair or maintenance, Damage to the hoses due to wear and tear or heat exposure, Presence of debris or blockages in the hoses.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code P1403 Mercury Description
The P1403 code for Mercury vehicles indicates that the Differential Pressure Feedback Electronic (DPFE) sensor hoses are reversed. The DPFE sensor is an essential component in the vehicle's exhaust gas recirculation (EGR) system, which helps reduce emissions by recirculating a portion of the exhaust gases back into the engine. The sensor measures the pressure difference between the exhaust gas before and after it enters the EGR system, providing crucial data for the engine's performance and emissions control.
Common Causes of P1403 Mercury
- Incorrect installation of the DPFE sensor hoses during a previous repair or maintenance
- Damage to the hoses due to wear and tear or heat exposure
- Presence of debris or blockages in the hoses
- Faulty DPFE sensor
- Electrical issues affecting the sensor's communication with the ECM
Symptoms of P1403 Mercury
- Poor fuel efficiency
- Reduced engine power
- Rough idling or stalling
- Check Engine Light illuminated
- Increased emissions
How to Fix P1403 Mercury
- Inspect the DPFE sensor and hoses to locate the reversed hoses.
- Remove and correctly reinstall the hoses in the proper orientation.
- Check for any damage or blockages in the hoses and replace if necessary.
- Test the DPFE sensor's functionality and reset the fault codes using a diagnostic scanner.
- Verify the repair by driving the vehicle and checking for any recurring issues or warning lights.
Cost to Fix P1403 Mercury
The cost of repairing a P1403 code for Mercury vehicles can vary depending on the extent of the issue and the specific components that need to be replaced. In general, the cost of replacing the DPFE sensor hoses and correcting the installation can range from $100 to $300, including parts and labor. Additional costs may apply if the DPFE sensor itself needs to be replaced or if there are other underlying issues affecting the EGR system. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model. Keep in mind that labor rates and diagnostic fees can vary based on location and service provider.
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