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P044A OBD2: Exhaust Gas Recirculation Sensor "C" Circuit

P044A OBD2: Exhaust Gas Recirculation Sensor “C” Circuit

What Does the P044A Code Mean?

The P044A code indicates an issue with the Exhaust Gas Recirculation (EGR) Sensor “C” Circuit. This code is triggered when the engine control module (PCM) detects that the amount of EGR flow requested does not match the actual flow detected.

What Causes the P044A Code?

Several factors can lead to the P044A code, including:

  • Failure of the EGR valve
  • Issues with the Powertrain Control Module (PCM)
  • Wiring problems within the EGR circuit

What Are the Symptoms of the P044A Code?

Drivers may notice the following symptoms when the P044A code is present:

  • Decreased engine performance
  • Increased fuel consumption

How Serious Is the P044A Code?

The severity of the P044A code is considered moderate. While it may not pose an immediate threat to vehicle safety or functionality, it should be diagnosed in a timely manner to prevent further complications and maintain optimal vehicle performance.

How to Diagnose the P044A Code

A proper diagnosis of the P044A code typically involves:

  • Using an OBD-II scanner to confirm the code and check for any related codes
  • Inspecting the EGR system, including the valve and its wiring
  • Testing the PCM for any faults

It is recommended to use certified repair shops for an accurate diagnosis.

Common Repairs for the P044A Code

Common repairs to address the P044A code include:

  • Replacing the EGR valve
  • Repairing or replacing damaged wiring
  • Replacing the Powertrain Control Module (PCM) if necessary

How Much Does It Cost to Fix the P044A Code?

The cost to fix the P044A code can vary widely based on the specific repair needed. Generally, EGR valve replacement can range from $200 to $600, depending on the vehicle model and labor costs.

Can I Fix the P044A Code Myself?

If you have mechanical skills and the right tools, you may be able to diagnose and repair the P044A code yourself. However, if you are not experienced with vehicle diagnostics or repairs, it is advisable to seek professional assistance to ensure the issue is resolved correctly.

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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