Engine-Codes.com
Engine-Codes – Generic – P1468

P1468 Code - EVAP Purge Pump Overspeed

Quick Answer

The P1468 code indicates an issue with the EVAP (Evaporative Emission Control System) purge pump overspeed. Common causes include Faulty EVAP purge pump, Clogged or blocked purge valve, Wiring or electrical 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
P1468 indicates EVAP Purge Pump Overspeed.
Common causes
Common causes include Faulty EVAP purge pump, Clogged or blocked purge valve, Wiring or electrical 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 06, 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 P1468 Description

The P1468 code indicates an issue with the EVAP (Evaporative Emission Control System) purge pump overspeed. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. The purge pump is a crucial component that controls the flow of these vapors back into the engine for combustion.

OBDII Code P1468 - EVAP Purge Pump Overspeed
P1468 Code - EVAP Purge Pump Overspeed

Common Causes of P1468

  1. Faulty EVAP purge pump
  2. Clogged or blocked purge valve
  3. Wiring or electrical issues
  4. Vacuum leaks in the EVAP system
  5. Malfunctioning EVAP pressure sensor

Symptoms of P1468

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

How to Fix P1468

  1. Diagnose the issue using a scan tool to confirm the P1468 code and identify the specific component causing the problem.
  2. Inspect the EVAP purge pump, purge valve, wiring, and hoses for any signs of damage or blockages.
  3. Replace the faulty components, such as the purge pump, purge valve, or pressure sensor, as needed.
  4. Clear the trouble codes and reset the vehicle's computer to ensure the issue has been resolved.
  5. Perform a smoke test to verify that there are no leaks in the EVAP system.

Cost to Fix P1468

The cost of repairing a P1468 code can vary depending on the specific cause of the issue and the labor rates in your area. In general, replacing the EVAP purge pump or valve can range from $150 to $300, including parts and labor. However, additional costs may apply if other components need to be replaced or if further diagnostics are required. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on your vehicle's make and model.

Need more information about the P1468 code?

Need more information on how to fix the P1468 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1468 code diagnosed by a professional: Find a repair shop in your area

Code P1468 Information for Specific Makes

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 P1468 Code

1. What does the OBDII code P1468 mean?

Code P1468 indicates that the Evaporative Emission (EVAP) purge pump is operating at an excessive speed, which may signal a malfunction in the EVAP system.

2. What are the symptoms of code P1468?

Common symptoms include the check engine light turning on, increased fuel odor, potential difficulty starting the vehicle, and possibly reduced fuel efficiency.

3. What causes the EVAP purge pump to overspeed?

Causes can include a faulty EVAP purge pump, vacuum leaks, a clogged or damaged EVAP hose, or issues with the system's wiring or connectors.

4. Can I drive my car with code P1468 present?

While the vehicle may still be drivable, ignoring this code can lead to increased emissions, fuel inefficiency, and potential damage to other components in the EVAP system.

5. How can I diagnose code P1468?

Diagnosis typically includes inspecting the EVAP purge pump, checking for vacuum leaks, testing wiring and connectors, and using a scan tool to monitor EVAP system performance.

6. What repairs are needed to fix code P1468?

Repairs may involve replacing the purge pump, repairing vacuum leaks, cleaning or replacing clogged hoses, or fixing damaged wiring.

7. How much does it cost to fix code P1468?

Costs can vary, with a purge pump replacement ranging from $200 to $400, while minor repairs like fixing vacuum leaks may be less expensive.

8. Can a faulty gas cap cause code P1468?

A loose or damaged gas cap is unlikely to cause this specific code but can lead to other EVAP-related issues. It’s worth checking during diagnosis.

9. Does code P1468 affect vehicle performance?

While it may not directly impact performance, unresolved EVAP issues can lead to reduced fuel efficiency and potential long-term damage.

10. How can I prevent code P1468 from occurring?

Regular maintenance of the EVAP system, ensuring hoses and connections are intact, and promptly addressing any check engine light alerts can help prevent this code.

Discuss the causes and fixes for P1468 OBDII Code

Submit a New Comment

Code P1468 comments

No comments found for this page.