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P2145 OBD2: Exhaust Gas Recirculation Vent Control Circuit High

P2145 OBD2: Exhaust Gas Recirculation Vent Control Circuit High

What Does the P2145 Code Mean?

The P2145 code indicates that the vehicle’s onboard diagnostic system has detected a problem with the Exhaust Gas Recirculation (EGR) Vent Control Circuit. Specifically, it signifies that the control circuit is registering a high signal, which can lead to decreased engine performance.

What Causes the P2145 Code?

This code is typically triggered by issues with the EGR system, which includes:

  • Failure of the EGR recirculation vent control valve
  • Malfunctioning Powertrain Control Module (PCM)
  • Wiring issues related to the control circuit

What Are the Symptoms of the P2145 Code?

The primary symptom associated with the P2145 code is decreased engine performance. This may manifest as:

  • Reduced power during acceleration
  • Rough idling
  • Poor fuel economy
  • Check Engine Light illumination

How Serious Is the P2145 Code?

The P2145 code is classified as a moderate severity issue. While it may not pose an immediate threat to the vehicle’s safety or functionality, it is essential to address it promptly to prevent further complications and to ensure optimal performance.

How to Diagnose the P2145 Code

To accurately diagnose the P2145 code, a mechanic should:

  • Use an OBD-II scanner to confirm the code and check for any related codes.
  • Inspect the wiring and connectors associated with the EGR system for damage or corrosion.
  • Test the EGR recirculation vent control valve for proper operation.
  • Evaluate the PCM for potential faults.

Common Repairs for the P2145 Code

Repairs for the P2145 code may include:

  • Replacing the EGR recirculation vent control valve
  • Repairing or replacing damaged wiring or connectors
  • Reprogramming or replacing the PCM

How Much Does It Cost to Fix the P2145 Code?

The cost to fix the P2145 code can vary widely depending on the specific issue. On average, you might expect to pay:

  • For a new EGR valve: $200 – $600
  • For wiring repairs: $100 – $300
  • For PCM replacement: $500 – $1,500

Can I Fix the P2145 Code Myself?

While some DIY enthusiasts may be able to tackle simple repairs, such as inspecting wiring or replacing the EGR valve, it is recommended to have a professional diagnose and repair the P2145 code to ensure all potential issues are addressed correctly.

About JC Landry

JC spent 15+ years as a certified Master Mechanic before trading the shop for the keyboard. He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.

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