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P2472 OBD2: Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic

P2472 OBD2: Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic

What Does the P2472 Code Mean?

The P2472 code indicates that there is an issue with the Exhaust Gas Temperature (EGT) sensor circuit. Specifically, it denotes that the engine control module (PCM) has detected an intermittent or erratic signal from the EGT sensor, which is crucial for monitoring exhaust temperatures in diesel engines.

What Causes the P2472 Code?

Several factors can lead to the P2472 code being triggered, including:

  • Exhaust Gas Temperature (EGT) sensor failure
  • Powertrain Control Module (PCM) failure
  • Wiring issues or poor connections in the EGT sensor circuit

What Are the Symptoms of the P2472 Code?

Symptoms associated with the P2472 code may include:

  • Check Engine Light illuminated
  • Decreased engine performance
  • Increased emissions
  • Potential stalling or rough running

How Serious Is the P2472 Code?

The P2472 code is considered to be of moderate severity. While it might not pose an immediate threat to your vehicle’s safety or functionality, it is important to get the issue diagnosed promptly to prevent further complications and to ensure optimal vehicle performance.

How to Diagnose the P2472 Code

To diagnose the P2472 code, a qualified technician should perform the following steps:

  • Use an OBD-II scanner to confirm the presence of the P2472 code and any related codes.
  • Inspect the wiring and connectors associated with the EGT sensor for damage or corrosion.
  • Test the EGT sensor’s resistance and output signals to ensure they are within specifications.
  • Check the Powertrain Control Module (PCM) for any faults.

Common Repairs for the P2472 Code

Common repairs for the P2472 code may include:

  • Replacing a faulty Exhaust Gas Temperature (EGT) sensor
  • Repairing or replacing damaged wiring or connectors
  • Reprogramming or replacing the Powertrain Control Module (PCM)

How Much Does It Cost to Fix the P2472 Code?

The cost to fix the P2472 code can vary widely based on the specific issue and labor costs in your area. Typical repair costs can range from $100 to $500, depending on whether the EGT sensor, wiring, or PCM needs to be replaced.

Can I Fix the P2472 Code Myself?

While some experienced DIY enthusiasts may be able to diagnose and replace an EGT sensor or repair wiring issues, it is generally advisable to have a professional mechanic handle the diagnosis and repair of the P2472 code. This ensures that the problem is properly addressed and that all related issues are identified.

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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