What are the Symptoms of a bad DPEF Sensor

What is a DPFE Sensor?

The Powertrain Control Module (PCM) collects input from the DPFE Sensor on how much exhaust gas is going through the EGR system. To maximize engine efficiency and emissions, the powertrain control module utilizes this data to manage the EGR sensor, EGR valve, and other components.

The emission gases flow rate towards the intake valve, which directs the gases into the cylinders, is monitored by the powertrain control module using the DPFE sensor.

The very hazardous nitrogen oxides (NOx) and explosion are prevented by the DPFE sensor’s assistance in reducing heat during combustion.

Driving may be challenging and cause an excessive quantity of air pollution if your car exhibits signs of a faulty DPFE sensor.

When the DPFE sensor malfunctions, the engine performs poorly and uses less gasoline. Additionally, your car might fail an emissions test and the Check Engine Light could illuminate on the dashboard. However, changing the DPFE sensor is a quick remedy that should return the automobile to its pre-accident state.

Function of DPFE Sensor

The Exhaust Gas Recirculation system is also known as EGR. It is the method used to draw exhaust gas back into the engine so that it can restart burning. This cutting-edge technology aids in lowering vehicle emissions of pollutants.

The two tubes that connect to the DPFE sensor are pressured when the gases pass through the EGR tube. In order to detect exhaust gases through the system, the DPFE sensor calculates the pressure difference in between the two tubes. The PCM receives this data in order to better manage the actuator and let the right quantity of gas through. Without the DPFE sensor, incorrect data is transmitted, which causes an instability in the exhaust gases.

Bad DPFE Sensor Symptoms

1) Poor Fuel Economy

Your car’s engine must be operating flawlessly in order to achieve the EPA’s predicted fuel efficiency figures. One of the most typical signs of a faulty DPFE sensor is low fuel efficiency.

The motor will have to work harder to make up for the defects when the DPFE sensors malfunction and transmit inaccurate information to the ECU. You could start spending more time at the gas station as a result of this additional effort’s increased gasoline requirement.

2) Bad Engine Performance

The engine cannot function as intended when the DPFE sensor malfunctions. In fact, bad engine efficiency is the initial indication that there is a problem with this sensor.

When a sensor malfunctions, the incorrect data is relayed to the engine’s computer. The EGR system breaks down as a result of this inaccurate data. You’ll notice less power and a choppy idle when this system isn’t functioning properly.

3) Rough Idle

Poor DPFE sensors might result in harsh idling. When the EGR is permanently open, a continuous flow of exhaust gases enters the open end, which might result in a rough idle when your car is beginning or during brief pauses (low engine speeds with a warmed-up engine).

4) Failed Emissions Tests

An effective EGR system requires the DPFE sensor. The car will fail an emissions test if the EGR system isn’t functioning properly.

Every country has rules governing emissions testing, which are frequently necessary for registration. You may have problems getting a license to drive and are increasing environmental pollution if your car can’t pass the emissions test.

5) Check Engine Light

The Check Engine Light illuminates when a fault is detected by the computer system. The EGR pressure sensor signal failing in this instance is the cause of the error.

Even yet, a malfunctioning DPFE sensor is not always indicated by a check engine light. In reality, this light illuminates anytime there is a motor issue. Using an OBDII code scanner is the only way to be certain.

DPFE Sensor Location

Normally, the DPFE sensor is situated close to the EGR valve. Between the engine and the firewall, behind the upper intake manifold, is where you’ll find the EGR valve.

This sensor frequently has a tiny square form. Two vacuum hoses are fastened to the bottom, and a wire harness protrudes from its side.

Nevertheless, depending on the type of car you drive, the precise position could change. As a result, it is recommended that you refer to your service manual for a diagram and the precise position.