Engine-CodesGMC – P216F GMC

P216F GMC Code - Cylinder 6 Injector High Control Circuit High Voltage

Quick Answer

The P216F GMC code indicates an issue with the Cylinder 6 Injector High Control Circuit High Voltage in the vehicle. Common causes include Wiring harness issues, Faulty fuel injector in cylinder 6, Malfunctioning Engine Control Module (ECM). 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
P216F GMC indicates Cylinder 6 Injector High Control Circuit High Voltage.
Common causes
Common causes include Wiring harness issues, Faulty fuel injector in cylinder 6, Malfunctioning Engine Control Module (ECM).
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 P216F GMC Description

The P216F GMC code indicates an issue with the Cylinder 6 Injector High Control Circuit High Voltage in the vehicle. In modern vehicles, fuel injectors play a crucial role in delivering the right amount of fuel to the engine cylinders for combustion. When this code appears, it means that there is a problem with the control circuit for the fuel injector in cylinder 6, specifically relating to high voltage.

OBDII Code P216F GMC - Cylinder 6 Injector High Control Circuit High Voltage
P216F GMC Code - Cylinder 6 Injector High Control Circuit High Voltage

Common Causes of P216F GMC

  1. Wiring harness issues
  2. Faulty fuel injector in cylinder 6
  3. Malfunctioning Engine Control Module (ECM)
  4. Problem with the fuel injector driver circuit
  5. Electrical issues in the control circuit

Symptoms of P216F GMC

  1. Rough idling or engine misfires
  2. Decreased engine performance
  3. Poor fuel efficiency
  4. Engine stalling
  5. Check Engine Light illuminated on the dashboard

How to Fix P216F GMC

  1. Diagnose the specific cause of the high voltage in the control circuit for the injector in cylinder 6 using a diagnostic scanner.
  2. Inspect the wiring harness for any damage, corrosion, or loose connections. Repair or replace as necessary.
  3. Test the fuel injector in cylinder 6 to determine if it is faulty. Replace if needed.
  4. Check the Engine Control Module (ECM) and fuel injector driver circuit for any malfunctions. Repair or replace components as required.
  5. Clear the trouble code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P216F GMC

The typical repair costs for addressing a P216F GMC code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, repairing the Cylinder 6 Injector High Control Circuit High Voltage issue can cost between $200 and $500, including parts and labor. However, it is essential to note that prices can fluctuate based on factors such as the vehicle's make and model, the severity of the problem, and the shop's location. Additionally, diagnostic time and labor rates at auto repair shops can range from $80 to $150 per hour, with rates potentially higher at dealerships and lower at independent shops. It is advisable to obtain quotes from local shops to get a more accurate estimate for this repair.

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Information for Specific GMC Models

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.

Frequently Asked Questions about P216F GMC Code

1. What are the common symptoms of OBDII code P216F GMC?

The common symptoms of code P216F include rough idling, decreased engine performance, and potential engine misfires.

2. What is the typical cause of OBDII code P216F GMC?

The typical cause of code P216F is a high voltage condition in the control circuit of the injector for cylinder 6, often due to a faulty injector or wiring issue.

3. How can I diagnose the root cause of OBDII code P216F GMC?

To diagnose code P216F, you can use a diagnostic scanner to check for the specific cylinder 6 injector high voltage issue, inspect the wiring for any damage, and test the injector for proper function.

4. Can a dirty fuel injector cause OBDII code P216F GMC?

Yes, a dirty or clogged fuel injector for cylinder 6 can potentially cause a high voltage condition and trigger code P216F.

5. What are some repair tips for addressing OBDII code P216F GMC?

Repair tips for code P216F may include cleaning or replacing the fuel injector for cylinder 6, checking and repairing any damaged wiring, and clearing the code to see if the issue persists.

6. Will driving with OBDII code P216F GMC cause further damage to the vehicle?

Continuing to drive with code P216F may lead to poor engine performance and potential damage to the catalytic converter, so it is recommended to address the issue promptly.

7. Can a DIY enthusiast fix OBDII code P216F GMC at home?

Depending on your skill level and access to tools, you may be able to address code P216F at home by inspecting the injector and wiring, cleaning the injector, or replacing any damaged components.

8. Is it safe to ignore OBDII code P216F GMC if my vehicle seems to be running fine?

While the vehicle may seem to run fine initially, ignoring code P216F can lead to long-term engine issues and decreased fuel efficiency, so it is best to address the problem promptly.

9. How much does it typically cost to repair OBDII code P216F GMC at a mechanic or dealership?

The cost to repair code P216F can vary depending on the exact cause of the issue, but it may involve diagnostic fees, parts costs for a new injector or wiring repair, and labor charges.

10. Can resetting the OBDII system clear code P216F GMC temporarily?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing code P216F is not resolved, the code is likely to return after driving the vehicle again.

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