How to Fix P0544/P0545 Error Code on Dacia Duster 1.5 dCi: Replace EGT Sensor 8200921749

Introduction: What This Problem Looks Like

If you’re driving a Dacia Duster 1.5 dCi and suddenly notice the Check Engine Light, reduced power, or the vehicle entering limp mode, there's a high chance your scan tool will reveal error codes P0544 or P0545.
These codes are directly related to a failing Exhaust Gas Temperature Sensor (EGT) — specifically the OEM part 8200921749.

The Diagnosis: What P0544 / P0545 Mean

  • P0544 – Exhaust Gas Temperature Sensor Circuit (Bank 1, Sensor 1)

  • P0545 – Exhaust Gas Temperature Sensor Circuit Low

These codes indicate that the ECU is receiving incorrect or weak signals from the upstream EGT sensor. A failing sensor can cause:

  • Poor engine performance

  • Interrupted DPF regeneration

  • Reduced turbo protection

  • Higher fuel consumption

  • Engine going into limp mode

Because the EGT sensor constantly endures extreme exhaust temperature, it naturally becomes inaccurate over time.

The Solution: Replace the EGT Sensor (OEM 8200921749)

OEM Number: 8200921749

Replacing the EGT sensor is the most effective and reliable fix.
Here’s why:

  • Old sensors lose accuracy due to heat degradation

  • Cleaning rarely works and may cause repeat failures

  • A new OEM-quality sensor restores proper exhaust temperature readings instantly

  • Clearing the codes after installation usually solves the problem on the spot

Ignoring a faulty EGT sensor may lead to DPF damage or turbo issues, costing far more in future repairs.

Compatibility: Vehicles This Part Fits

This OEM EGT sensor 8200921749 is compatible with:

  • Dacia Duster 1.5 dCi

  • Dacia Logan 1.5 dCi

  • Dacia Sandero 1.5 dCi

  • Renault Megane / Scenic / Clio 1.5 dCi

  • Nissan Qashqai 1.5 dCi

These models share Renault’s 1.5 dCi diesel platform, making this sensor widely used across multiple brands.

Call to Action

You can purchase the EGT Sensor 8200921749 directly from our US Warehouse with fast shipping.
We offer:

  • 2-year warranty

  • Fitment guarantee

  • OEM-quality components

A simple sensor replacement can eliminate P0544/P0545 codes and keep your Dacia running at peak performance.

Want to learn more about exhaust sensors? Read our [Complete Guide to EGT Sensors & P0544 Codes]