Engine-CodesFord – P0474 Ford

P0474 Ford Code - Exhaust Pressure Sensor Intermittent

Quick Answer

The P0474 Ford code indicates that there is an intermittent issue with the exhaust pressure sensor in the vehicle. Common causes include Faulty exhaust pressure sensor, Damaged wiring or connectors, ECM software issues. 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
P0474 Ford indicates Exhaust Pressure Sensor Intermittent.
Common causes
Common causes include Faulty exhaust pressure sensor, Damaged wiring or connectors, ECM software issues.
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.
Table of contents Created and updated by William Orellana on Sep 08, 2024
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Code P0474 Ford Description

The P0474 Ford code indicates that there is an intermittent issue with the exhaust pressure sensor in the vehicle. The exhaust pressure sensor is a crucial component of the vehicle's exhaust system, responsible for monitoring the pressure within the exhaust system. This information is used by the engine control module (ECM) to optimize the air-fuel mixture and ensure efficient engine performance.

OBDII Code P0474 Ford - Exhaust Pressure Sensor Intermittent
P0474 Ford Code - Exhaust Pressure Sensor Intermittent

Common Causes of P0474 Ford

  1. Faulty exhaust pressure sensor
  2. Damaged wiring or connectors
  3. ECM software issues
  4. Exhaust system leaks
  5. Exhaust pressure sensor calibration errors

Symptoms of P0474 Ford

  1. Decreased fuel efficiency
  2. Engine hesitation or stalling
  3. Check Engine Light illuminated
  4. Rough idling
  5. Reduced engine power

How to Fix P0474 Ford

  1. Begin by diagnosing the exact cause of the intermittent exhaust pressure sensor issue using a diagnostic scanner.
  2. Inspect the exhaust pressure sensor and its wiring for any visible damage or corrosion. Replace the sensor if necessary.
  3. Check and repair any damaged wiring or connectors related to the exhaust pressure sensor.
  4. If the issue persists, reprogram or update the ECM software to ensure proper communication with the sensor.
  5. Test drive the vehicle to confirm that the repair has resolved the intermittent sensor issue.

Cost to Fix P0474 Ford

The typical repair costs for addressing an intermittent exhaust pressure sensor issue can range from $200 to $500, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher at dealerships or in metropolitan areas. It's recommended to inquire about local rates for a more accurate estimate.

Tech Notes for P0474 Ford

Replacing the exhaust back pressure usually takes care of the problem

When is the Code Detected?

An Exhaust Back Pressure (EBP) signal that is detected out of range (high or low) by the Engine Control Module (ECM) will cause the engine to ignore the EBP signal and disable exhaust back pressure operation.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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