P0549 - OBD II Trouble Code

Our automotive experts have put together the following information about the P0549 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P0549 code.

OBD II Fault Code

• OBD II P0549

OBD-II Code Decreased engine performance is defined as a Exhaust Gas Temperature Sensor Circuit High

The Exhaust Gas Temperature (EGT) Sensor tells the engine control module (PCM) the temperature of the exhaust gas coming out of the engine. High exhaust temperatures can lead to engine or turbocharger failure. If the PCM detects an incorrect signal from the EGT sensor, it will store code P0549.

Decreased engine performance Symptoms

• Decreased engine performance

Common Problems That Trigger the P0549 Code

• EGR valve failure
• Exhaust Gas Temperature (EGT) sensor failure
• Fuel injector failure
• Powertrain Control Module (PCM) failure
• Wiring issue