Engine-CodesGeneric – P022E

P022E Code - Charge Air Cooler Bypass Control 'B' Circuit Low

Quick Answer

The P022E diagnostic trouble code refers to an issue with the Charge Air Cooler Bypass Control 'B' Circuit being detected as low. Common causes include Faulty charge air cooler bypass control solenoid, Wiring or electrical issues in the bypass control circuit, Vacuum leaks in the CAC 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
P022E indicates Charge Air Cooler Bypass Control 'B' Circuit Low.
Common causes
Common causes include Faulty charge air cooler bypass control solenoid, Wiring or electrical issues in the bypass control circuit, Vacuum leaks in the CAC 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 08, 2024
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Code P022E Description

The P022E diagnostic trouble code refers to an issue with the Charge Air Cooler Bypass Control 'B' Circuit being detected as low. The charge air cooler (CAC) is an essential component in turbocharged and supercharged engines that cools down the hot compressed air coming from the turbocharger before it enters the engine. The bypass control circuit regulates the flow of air through the CAC, adjusting it based on engine load and operating conditions to optimize performance and fuel efficiency.

OBDII Code P022E - Charge Air Cooler Bypass Control 'B' Circuit Low
P022E Code - Charge Air Cooler Bypass Control 'B' Circuit Low

Common Causes of P022E

  1. Faulty charge air cooler bypass control solenoid
  2. Wiring or electrical issues in the bypass control circuit
  3. Vacuum leaks in the CAC system
  4. Clogged or restricted charge air cooler
  5. Software or programming issues in the engine control module

Symptoms of P022E

  1. Decreased engine performance
  2. Reduced fuel efficiency
  3. Illuminated check engine light
  4. Rough idling or stalling
  5. Engine overheating

How to Fix P022E

  1. Diagnose the issue using a scan tool to confirm the P022E code and pinpoint the exact cause.
  2. Inspect the charge air cooler bypass control solenoid for proper operation and replace if faulty.
  3. Check the wiring and connectors in the bypass control circuit for any damage or corrosion, repairing or replacing as necessary.
  4. Inspect the charge air cooler for any restrictions or blockages, cleaning or replacing if needed.
  5. Clear the trouble code from the engine control module memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P022E

The cost of repairing a P022E code can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the parts for this repair can range from $100 to $300, while labor costs can range from $150 to $400. This estimate does not include diagnostic time, which can add to the overall cost. It is recommended to consult with a trusted mechanic or repair shop for a more accurate cost estimate based on your vehicle's specific needs.

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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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