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P2407 OBD2: Evaporative Emission System Leak Detection Pump Sense Circuit

P2407 OBD2: Evaporative Emission System Leak Detection Pump Sense Circuit

OBD-II Code P2407 is defined as an Evaporative Emission System Leak Detection Pump Sense Circuit issue. This code indicates that there is a problem with the sensor that monitors the pressure or vacuum within the EVAP system.

What Does the P2407 Code Mean?

The P2407 code specifically refers to a malfunction in the Evaporative Emission System’s leak detection pump sense circuit. This system is responsible for venting fuel vapors from the fuel tank to the intake manifold, where they are burned in the engine during normal combustion.

What Causes the P2407 Code?

Several factors can trigger the P2407 code, including:

  • Evap leak detection pump failure
  • Leak in the EVAP system
  • Powertrain Control Module (PCM) failure
  • Restriction in the EVAP system
  • Wiring issues

What Are the Symptoms of the P2407 Code?

Common symptoms associated with the P2407 code may include:

  • Illuminated Check Engine Light
  • Possible fuel odor from the vehicle
  • Decreased fuel efficiency

How Serious Is the P2407 Code?

The P2407 code is considered to have a moderate severity level. While it may not pose an immediate threat to vehicle safety or functionality, it is advisable to diagnose and repair the issue in a timely manner to maintain optimal vehicle performance.

How to Diagnose the P2407 Code

Diagnosing the P2407 code typically involves the following steps:

  1. Use an OBD-II scanner to confirm the presence of the P2407 code.
  2. Inspect the EVAP system for any visible leaks or damage.
  3. Check the wiring and connections related to the leak detection pump sensor.
  4. Test the leak detection pump for proper operation.
  5. Examine the PCM for any faults or issues.

Common Repairs for the P2407 Code

Repairs for the P2407 code may include:

  • Replacing the evap leak detection pump
  • Repairing or replacing damaged wiring
  • Fixing leaks in the EVAP system
  • Reprogramming or replacing the PCM if necessary

How Much Does It Cost to Fix the P2407 Code?

The cost to fix the P2407 code can vary widely based on the specific repairs needed. On average, you might expect to pay between $100 and $400, depending on labor rates and parts.

Can I Fix the P2407 Code Myself?

While some DIY enthusiasts may tackle simple repairs like checking for leaks or inspecting wiring, it is recommended to consult with a professional mechanic for a proper diagnosis and repair of the P2407 code. This ensures that all aspects of the EVAP system are thoroughly evaluated.

About JC Landry

JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.

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