AutoCodes – Chevrolet – P12FF Chevrolet

P12FF Chevrolet Code - Cylinder Deactivation Exhaust Flow Valve Actuator Performance Bank 2

Quick Answer

The cylinder deactivation exhaust flow control system consists of valves installed at the inlet of the muffler. Common causes include Faulty Cylinder Deactivation Exhaust Flow Valve, Cylinder Deactivation Exhaust Flow Valve harness is open or shorted, Cylinder Deactivation Exhaust Flow Valve circuit poor electrical connection. 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
P12FF Chevrolet indicates Cylinder Deactivation Exhaust Flow Valve Actuator Performance Bank 2.
Common causes
Common causes include Faulty Cylinder Deactivation Exhaust Flow Valve, Cylinder Deactivation Exhaust Flow Valve harness is open or shorted, Cylinder Deactivation Exhaust Flow Valve circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,778
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 13, 2019
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Code P12FF Chevrolet Description

The cylinder deactivation exhaust flow control system consists of valves installed at the inlet of the muffler. The exhaust flow control system is used to tune the exhaust note. The Powertrain Control Module (PCM) monitors the Cylinder Deactivation Exhaust Flow Valve. The PCM sets the OBDII code when the Cylinder Deactivation Exhaust Flow Valve is not to factory specifications.
OBDII Code P12FF Chevrolet - Cylinder Deactivation Exhaust Flow Valve Actuator Performance Bank 2 - AutoCodes.com
P12FF Chevrolet Code - Cylinder Deactivation Exhaust Flow Valve Actuator Performance Bank 2

What are the Possible Causes of the DTC P12FF Chevrolet?

  • Faulty Cylinder Deactivation Exhaust Flow Valve
  • Cylinder Deactivation Exhaust Flow Valve harness is open or shorted
  • Cylinder Deactivation Exhaust Flow Valve circuit poor electrical connection

How to Fix the DTC P12FF Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P12FF Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P12FF Chevrolet code?

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Need Help with the Code?

Get the P12FF Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 P12FF Chevrolet Code

1. What are the common symptoms of OBDII code P12FF on a Chevrolet related to the Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2?

- Common symptoms may include reduced engine performance, rough idling, and possibly a decrease in fuel efficiency.

2. What can cause the OBDII code P12FF on a Chevrolet related to Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2?

- The code may be triggered by issues with the exhaust flow valve actuator itself, such as a faulty actuator motor or wiring problems.

3. How can I diagnose the OBDII code P12FF on a Chevrolet for Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2?

- Diagnosis involves using a scan tool to check for the code, inspecting the exhaust flow valve actuator components, and testing the actuator motor and related wiring.

4. Can I still drive my Chevrolet with the OBDII code P12FF related to Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage and potential safety issues.

5. How can I repair the OBDII code P12FF on a Chevrolet related to Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2?

- Repair typically involves replacing the faulty exhaust flow valve actuator or addressing any wiring issues causing the fault code.

6. Are there any DIY tips for fixing the OBDII code P12FF on a Chevrolet related to Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2?

- DIY repairs may be challenging due to the complexity of the exhaust flow valve actuator system, so it's recommended to consult a professional mechanic for proper diagnosis and repair.

7. Will resetting the OBDII code P12FF on a Chevrolet related to Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2 make it go away permanently?

- Simply resetting the code may temporarily clear the warning light, but if the underlying issue with the exhaust flow valve actuator is not addressed, the code is likely to return.

8. How much does it typically cost to repair the OBDII code P12FF on a Chevrolet related to Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2?

- The cost of the repair can vary depending on the exact cause of the issue, but it may involve parts and labor expenses ranging from $200 to $600 or more.

9. Can a faulty Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2 cause other problems in my Chevrolet?

- Yes, a faulty exhaust flow valve actuator can impact engine performance, fuel efficiency, and overall drivability of the vehicle.

10. Is the OBDII code P12FF related to Cylinder Deactivation Exhaust Flow Valve Actuator on Bank 2 a common issue in Chevrolet vehicles?

- While not extremely common, issues with the exhaust flow valve actuator can occur in Chevrolet vehicles equipped with cylinder deactivation technology.

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