Symptoms of a Faulty or Faulty EGR Pressure Feedback Sensor
Common symptoms include engine performance issues such as rough idle and power loss, emission test failure, and Check Engine light coming on.
Many modern vehicles are equipped with an exhaust gas recirculation system, which helps reduce vehicle emissions. The EGR system works by recirculating exhaust gases back to the engine to reduce cylinder temperatures and NOx emissions. The EGR system is made up of several components that work together to accomplish this task. One such component commonly found in many EGR systems is the EGR pressure feedback sensor.
The EGR pressure feedback sensor, also known as the delta pressure feedback sensor, is a sensor that detects pressure changes in the EGR system. Together with the EGR valve, it regulates the pressure in the EGR system. When the EGR pressure feedback sensor detects that the pressure is low, it opens the EGR valve to increase flow, and conversely closes the valve if it detects that the pressure is too high.
Since the pressure reading detected by the EGR pressure sensor is one of the most important parameters used by the EGR system, if it has any problems, it can cause problems with the EGR system, which can lead to engine running problems and even increased emissions. . Usually, a problem with the EGR pressure feedback sensor causes several symptoms that can alert the driver to a potential problem that needs to be fixed.
1. Problems with engine operation
One of the first symptoms of an EGR pressure sensor problem is engine performance problems. If the EGR pressure sensor is sending any false readings to the computer, it may cause the EGR system to malfunction. A faulty EGR system can lead to engine performance problems such as rough idling, engine vibration, and reduced overall power and fuel efficiency.
2. Failed emission test
Another sign of a potential problem with the EGR pressure sensor is a failed emissions test. If the EGR pressure sensor has any problems that affect the functionality of the EGR system, it could cause the vehicle to fail the emissions test. This is especially important in states that require a vehicle to pass an emissions test in order to register the vehicle.
3. Check Engine light comes on.
Another sign of an EGR pressure sensor problem is the Check Engine light. If the computer detects any problem with the EGR pressure sensor signal or circuit, it will illuminate the Check Engine light to notify the driver of the problem. The Check Engine light can be caused by a variety of problems, so it is highly recommended that you scan your computer for trouble codes.
The EGR pressure sensor is one of the most critical components of the EGR system for vehicles that are equipped with it. The signal it produces is one of the main parameters that the EGR system uses to function, and any problems with it can affect the overall functionality of the system. For this reason, if you suspect your EGR pressure sensor may have a problem, have your vehicle checked by a professional technician such as AvtoTachki to determine if the sensor should be replaced.
