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Engine-Codes – Generic – P1228

P1228 Code - Wastegate Failed Open Under Pressure

Quick Answer

When the diagnostic code P1228 appears, it indicates that the wastegate in the vehicle's turbocharger system has failed open under pressure. Common causes include Wastegate actuator failure, Wastegate valve sticking, Vacuum leak in wastegate 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
P1228 indicates Wastegate Failed Open Under Pressure.
Common causes
Common causes include Wastegate actuator failure, Wastegate valve sticking, Vacuum leak in wastegate 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.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P1228 Description

When the diagnostic code P1228 appears, it indicates that the wastegate in the vehicle's turbocharger system has failed open under pressure. The wastegate is a crucial component in regulating the boost pressure produced by the turbocharger. If the wastegate fails open under pressure, it can lead to a loss of power, decreased fuel efficiency, and potential engine damage. This issue can also cause the vehicle to go into a "limp mode" to prevent further damage.

OBDII Code P1228 - Wastegate Failed Open Under Pressure
P1228 Code - Wastegate Failed Open Under Pressure

Common Causes of P1228

  1. Wastegate actuator failure
  2. Wastegate valve sticking
  3. Vacuum leak in wastegate system
  4. Faulty wastegate control solenoid
  5. Turbocharger issues

Symptoms of P1228

  1. Loss of power or acceleration
  2. Poor fuel economy
  3. Engine overheating
  4. Loud hissing noise from the turbocharger
  5. Check Engine Light illuminated

How to Fix P1228

  1. Diagnose the exact cause of the wastegate failure using a scan tool to read the trouble codes and perform a visual inspection of the wastegate system.
  2. Replace the faulty wastegate actuator or wastegate valve.
  3. Check and repair any vacuum leaks in the wastegate system.
  4. Test the wastegate control solenoid for proper operation and replace if necessary.
  5. Inspect the turbocharger for any damage or malfunction.

Cost to Fix P1228

The cost of repairing a wastegate that has failed open under pressure can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the repair costs for this issue can range from $200 to $800, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary. It's recommended to get quotes from multiple shops to get a more accurate estimate.

What does this mean?

Tech Notes for P1228

Indicates that boost pressure is continuously lower than desired

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Code P1228 Information for Specific Makes

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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