Engine-CodesGMC – P1228 GMC

P1228 GMC Code - Injector Circuit Cylinder 3 Intermittent

Quick Answer

The P1228 GMC code refers to an issue with the injector circuit in cylinder 3 of the vehicle's engine. Common causes include Faulty fuel injector in cylinder 3, Wiring issues in the injector circuit, Injector driver malfunction in the engine control module. 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 GMC indicates Injector Circuit Cylinder 3 Intermittent.
Common causes
Common causes include Faulty fuel injector in cylinder 3, Wiring issues in the injector circuit, Injector driver malfunction in the engine control module.
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 10, 2024
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Code P1228 GMC Description

The P1228 GMC code refers to an issue with the injector circuit in cylinder 3 of the vehicle's engine. This code indicates that there is an intermittent problem with the fuel injector in cylinder 3, which can lead to a variety of issues affecting the vehicle's performance. The fuel injector is responsible for delivering the precise amount of fuel into the combustion chamber at the right time to ensure proper engine operation. When this circuit is intermittent, it can disrupt the fuel delivery process, leading to misfires, rough idling, poor acceleration, and decreased fuel efficiency.

OBDII Code P1228 GMC - Injector Circuit Cylinder 3 Intermittent
P1228 GMC Code - Injector Circuit Cylinder 3 Intermittent

Common Causes of P1228 GMC

  1. Faulty fuel injector in cylinder 3
  2. Wiring issues in the injector circuit
  3. Injector driver malfunction in the engine control module
  4. Fuel injector control module failure
  5. Poor fuel quality or clogged fuel injector

Symptoms of P1228 GMC

  1. Engine misfires
  2. Rough idling
  3. Decreased fuel efficiency
  4. Loss of power or acceleration
  5. Check Engine Light illuminated

How to Fix P1228 GMC

  1. Diagnose the specific cause of the issue using a scan tool to identify the problem with the injector circuit in cylinder 3.
  2. Inspect the wiring and connections in the injector circuit for any damage or corrosion and repair as needed.
  3. Test the fuel injector in cylinder 3 to determine if it is functioning properly and replace if necessary.
  4. Check the injector driver in the engine control module for any faults and replace if needed.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1228 GMC

The cost of repairing the injector circuit in cylinder 3 can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair costs for this issue can range from $200 to $500, including parts and labor. It's important to note that diagnosis time and labor rates can vary based on factors such as location, vehicle make and model, and engine type. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate for this 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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