Engine-CodesMercury – P2228 Mercury

P2228 Mercury Code - Barometric Pressure Sensor 'A' Circuit Low

Quick Answer

The P2228 diagnostic trouble code (DTC) for Mercury vehicles indicates an issue with the Barometric Pressure Sensor 'A' Circuit being too low. Common causes include Faulty barometric pressure sensor, Damaged wiring or connectors, Vacuum leak. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2228 Mercury indicates Barometric Pressure Sensor 'A' Circuit Low.
Common causes
Common causes include Faulty barometric pressure sensor, Damaged wiring or connectors, Vacuum leak.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2228 Mercury Description

The P2228 diagnostic trouble code (DTC) for Mercury vehicles indicates an issue with the Barometric Pressure Sensor 'A' Circuit being too low. The barometric pressure sensor is a crucial component of the vehicle's engine management system, as it helps the engine control module (ECM) adjust fuel delivery and ignition timing based on the atmospheric pressure. A low signal from the sensor can disrupt the engine's performance, leading to a variety of issues.

OBDII Code P2228 Mercury - Barometric Pressure Sensor 'A' Circuit Low
P2228 Mercury Code - Barometric Pressure Sensor 'A' Circuit Low

Common Causes of P2228 Mercury

  1. Faulty barometric pressure sensor
  2. Damaged wiring or connectors
  3. Vacuum leak
  4. Malfunctioning ECM
  5. Environmental factors affecting barometric pressure readings

Symptoms of P2228 Mercury

  1. Rough idling or stalling
  2. Decreased fuel efficiency
  3. Hesitation or lack of power during acceleration
  4. Illuminated check engine light
  5. Engine misfires

How to Fix P2228 Mercury

  1. Use an OBD-II scanner to retrieve the specific DTC and confirm the issue.
  2. Inspect the barometric pressure sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the sensor using a multimeter to determine if it is functioning within the manufacturer's specifications.
  4. Replace the barometric pressure sensor if it is found to be faulty.
  5. Clear the DTC and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2228 Mercury

The cost of repairing a Barometric Pressure Sensor 'A' Circuit Low issue can vary depending on the specific cause of the problem and the labor rates in your area. Generally, replacing the barometric pressure sensor can cost between $100 and $300, including parts and labor. However, additional diagnostic time may be needed to pinpoint the exact cause of the issue, which could increase the overall repair cost. It is advisable to consult with a mechanic to get an accurate estimate for your specific vehicle.

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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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