AutoCodes – Generic – P149D

P149D Code - Evaporative Emission System Shutoff Valve 2 Stuck Off

Quick Answer

The Engine Control Module (ECM) monitors the Evaporative Emission System Shutoff Valve 2. Common causes include Faulty Evaporative Emission System Shutoff Valve 2, Evaporative Emission System Shutoff Valve 2 harness is open or shorted, Evaporative Emission System Shutoff Valve 2 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: P149D indicates Evaporative Emission System Shutoff Valve 2 Stuck Off.
Common causes: Common causes include Faulty Evaporative Emission System Shutoff Valve 2, Evaporative Emission System Shutoff Valve 2 harness is open or shorted, Evaporative Emission System Shutoff Valve 2 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.

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Code Popularity 4,618

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Oct 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P149D Description

The Engine Control Module (ECM) monitors the Evaporative Emission System Shutoff Valve 2. The ECM sets the OBDII code when the Evaporative Emission System Shutoff Valve 2 is not to factory specifications.

OBDII Code P149D - Evaporative Emission System Shutoff Valve 2 Stuck Off - AutoCodes.com — P149D Code - Evaporative Emission System Shutoff Valve 2 Stuck Off

What does this mean?

What are the Possible Causes of the DTC P149D?

Faulty Evaporative Emission System Shutoff Valve 2
Evaporative Emission System Shutoff Valve 2 harness is open or shorted
Evaporative Emission System Shutoff Valve 2 circuit poor electrical connection

How to Fix the DTC P149D?

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 P149D 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 P149D code?

Need more information on how to fix the P149D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P149D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P149D BMW — Evaporative Emission System Shutoff Valve 2 Stuck Off
P149D MINI — Evaporative Emission System Shutoff Valve 2 Stuck Off

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 P149D Code

1. What are the common symptoms of OBDII code P149D (Evaporative Emission System Shutoff Valve 2 Stuck Off)?

- Common symptoms include a check engine light illuminated on the dashboard, decreased fuel efficiency, and potential fuel vapor odors.

2. What can cause the OBDII code P149D to trigger?

- The code P149D typically triggers when the evaporative emission system shutoff valve 2 fails to operate properly, leading to it being stuck in the off position.

3. How serious is the OBDII code P149D (Evaporative Emission System Shutoff Valve 2 Stuck Off)?

- While the vehicle may still be operable with this code, it is important to address it promptly to prevent potential issues with emissions control and fuel efficiency.

4. Can I continue driving with the OBDII code P149D illuminated?

- It is generally safe to drive the vehicle with the code present, but it is recommended to have the issue diagnosed and repaired as soon as possible to avoid further complications.

5. How can the OBDII code P149D be diagnosed?

- Diagnosis typically involves using an OBDII scanner to read the code, followed by a thorough inspection of the evaporative emission system components to pinpoint the malfunction.

6. What are some DIY repair tips for fixing the OBDII code P149D?

- DIY repair tips may include checking for disconnected or damaged hoses, ensuring proper electrical connections, and testing the shutoff valve for functionality.

7. Is it possible to reset the OBDII code P149D without fixing the underlying issue?

- While clearing the code temporarily may be possible, it is not recommended as the issue will likely resurface, leading to potential long-term problems with emissions control.

8. How much does it typically cost to repair the OBDII code P149D?

- The cost of repair can vary depending on the extent of the issue and labor rates, but it may involve replacing the faulty component or addressing related system malfunctions.

9. Can a faulty gas cap cause the OBDII code P149D to trigger?

- While a faulty gas cap can contribute to evaporative emission system issues, it is not a common cause of the specific code P149D related to the shutoff valve being stuck off.

10. What should I do if I encounter the OBDII code P149D repeatedly after repairs?

- If the code persists after repairs, it is advisable to have a professional mechanic perform a comprehensive diagnosis to identify any underlying issues that may be causing the recurrence.