Engine-Codes.com
Engine-Codes – Generic – P149C

P149C Code - Evaporative Emission System Shutoff Valve 2 Control Circuit High

Quick Answer

The P149C code indicates a problem with the Evaporative Emission System Shutoff Valve 2 Control Circuit being too high. Common causes include Faulty Evaporative Emission System Shutoff Valve 2, Damaged wiring or connectors in the control circuit, ECM communication issues. 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
P149C indicates Evaporative Emission System Shutoff Valve 2 Control Circuit High.
Common causes
Common causes include Faulty Evaporative Emission System Shutoff Valve 2, Damaged wiring or connectors in the control circuit, ECM communication issues.
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 Sep 11, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P149C Description

The P149C code indicates a problem with the Evaporative Emission System Shutoff Valve 2 Control Circuit being too high. This valve is responsible for controlling the flow of fuel vapor from the fuel tank to the engine for combustion. When the control circuit is reading high, it means that there is an issue with the valve not functioning properly, which can lead to a variety of problems within the vehicle's emissions system.

OBDII Code P149C - Evaporative Emission System Shutoff Valve 2 Control Circuit High
P149C Code - Evaporative Emission System Shutoff Valve 2 Control Circuit High

Common Causes of P149C

  1. Faulty Evaporative Emission System Shutoff Valve 2.
  2. Damaged wiring or connectors in the control circuit.
  3. ECM communication issues.
  4. Vacuum leaks in the emissions system.
  5. Fuel filler cap not sealing properly.

Symptoms of P149C

  1. Check engine light is illuminated.
  2. Rough idle or stalling.
  3. Difficulty starting the vehicle.
  4. Decreased fuel efficiency.
  5. Strong fuel odor coming from the vehicle.

How to Fix P149C

  1. Diagnose the issue using a scan tool to determine the exact cause of the code.
  2. Inspect the Evaporative Emission System Shutoff Valve 2 and replace if necessary.
  3. Check and repair any damaged wiring or connectors in the control circuit.
  4. Test the ECM to ensure it is functioning properly and communicate with the valve.
  5. Clear the code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P149C

The typical repair costs for resolving a P149C code can vary depending on the specific cause of the issue. In general, the cost for parts can range from $100 to $300, while labor costs can range from $100 to $200. Overall, the total repair cost could be between $200 and $500. However, it's important to note that prices can vary based on location, vehicle make and model, and the specific diagnosis and repair process required. It's recommended to check with local auto repair shops for a more accurate estimate.

Need more information about the P149C code?

Need more information on how to fix the P149C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P149C code diagnosed by a professional: Find a repair shop in your area

Code P149C Information for Specific Makes

  • P149C BMW — Evaporative Emission System Shutoff Valve 2 Control Circuit High
  • P149C MINI — Evaporative Emission System Shutoff Valve 2 Control Circuit High
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 P149C Code

1. What are common symptoms of OBDII code P149C?

- Common symptoms of code P149C may include a check engine light illuminated on the dashboard, decreased fuel efficiency, and possible rough idling or stalling.

2. What does the OBDII code P149C indicate?

- OBDII code P149C indicates a potential issue with the Evaporative Emission System Shutoff Valve 2 Control Circuit High.

3. What are some possible causes of OBDII code P149C?

- Possible causes of code P149C can include a faulty shutoff valve, damaged wiring or connectors in the control circuit, or issues with the engine control module.

4. How can I diagnose the cause of OBDII code P149C?

- To diagnose the cause of code P149C, you may need to perform a visual inspection of the related components, check the wiring and connectors for damage, and use a scan tool to monitor the valve operation.

5. How can I repair OBDII code P149C?

- Repairing OBDII code P149C may involve replacing the Evaporative Emission System Shutoff Valve 2, repairing any damaged wiring or connectors, or reprogramming the engine control module.

6. Can OBDII code P149C cause any long-term damage to my vehicle?

- While driving with code P149C may not immediately harm your vehicle, it can lead to increased emissions, decreased fuel efficiency, and potential long-term damage to the engine if left unresolved.

7. Is it safe to continue driving with OBDII code P149C present?

- It is generally not recommended to continue driving with code P149C present, as it can impact your vehicle's performance and emissions. It's best to address the issue promptly to prevent further problems.

8. How much does it typically cost to repair OBDII code P149C?

- The cost to repair OBDII code P149C can vary depending on the specific cause of the issue, the labor rates in your area, and the cost of parts. It's advisable to consult a mechanic for an accurate estimate.

9. Can I reset the check engine light after fixing OBDII code P149C myself?

- After repairing the issue causing code P149C, you can reset the check engine light using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes to clear the error code.

10. Are there any maintenance tips to prevent OBDII code P149C from reoccurring?

- To prevent OBDII code P149C from reoccurring, it's essential to perform regular maintenance on your vehicle, including checking the evaporative emission system components for signs of wear or damage.

Discuss the causes and fixes for P149C OBDII Code

Submit a New Comment

Code P149C comments

No comments found for this page.