P12F0 - Cylinder Deactivation Exhaust Flow Valve Stuck Open Bank 1

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

P12F0 Possible Causes

  • 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 do I fix code P12F0?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
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Cost of diagnosing the P12F0 code

Labor: 1.0

The cost of diagnosing the P12F0 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P12F0 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 P12f0 - Cylinder Deactivation Exhaust Flow Valve Stuck Open Bank 1 - AutoCodes.com

More Information

Need more information on how to fix the P12F0 code?
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Information for specific makes

  • P12F0 CHEVROLET Cylinder Deactivation Exhaust Flow Valve Stuck Open Bank 1
  • P12F0 GMC Cylinder Deactivation Exhaust Flow Valve Stuck Open Bank 1

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Comments

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