Engine-CodesGeneric – P222F

P222F Code - Barometric Pressure Sensor 'A'/'B' Correlation

Quick Answer

The P222F diagnostic trouble code (DTC) refers to a Barometric Pressure Sensor 'A'/'B' correlation issue. Common causes include Faulty barometric pressure sensor, Wiring or connector issues, Vacuum leak in the intake system. 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
P222F indicates Barometric Pressure Sensor 'A'/'B' Correlation.
Common causes
Common causes include Faulty barometric pressure sensor, Wiring or connector issues, Vacuum leak in the intake system.
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 12, 2024
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Code P222F Description

The P222F diagnostic trouble code (DTC) refers to a Barometric Pressure Sensor 'A'/'B' correlation issue. The barometric pressure sensor is responsible for measuring the atmospheric pressure outside of the vehicle. This information is crucial for the engine control module (ECM) to adjust fuel delivery and ignition timing, ensuring optimal engine performance and efficiency.

OBDII Code P222F - Barometric Pressure Sensor 'A'/'B' Correlation
P222F Code - Barometric Pressure Sensor 'A'/'B' Correlation

Common Causes of P222F

  1. Faulty barometric pressure sensor
  2. Wiring or connector issues
  3. Vacuum leak in the intake system
  4. ECM malfunction
  5. Environmental factors affecting barometric pressure readings

Symptoms of P222F

  1. Decreased fuel efficiency
  2. Rough idling
  3. Hesitation or lack of power during acceleration
  4. Engine stalling
  5. Check Engine Light illuminated on the dashboard

How to Fix P222F

  1. Begin by using a diagnostic scan tool to retrieve and record the DTCs present in the vehicle's ECM.
  2. Inspect the barometric pressure sensor 'A' and 'B' for any visible damage or signs of malfunction. Replace the sensors if necessary.
  3. Check the wiring harness and connectors for any breaks, corrosion, or loose connections. Repair or replace as needed.
  4. Perform a smoke test to check for vacuum leaks in the intake system. Repair any leaks found.
  5. Clear the DTCs from the ECM's memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P222F

The cost of repairing a P222F DTC can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing the barometric pressure sensor can cost between $100 and $200, while addressing wiring or connector issues may range from $50 to $150. A smoke test to check for vacuum leaks can cost around $100 to $200. Overall, the total repair cost for this issue could range from $200 to $500, including parts and labor. Remember that labor rates at auto repair shops can vary, so it's advisable to obtain a few quotes before proceeding with the repair.

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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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