Does a faulty EGR valve affect performance?

One of the first symptoms of a problem with the EGR valve is engine performance issues. A clogged or malfunctioning EGR valve can disrupt the vehicle's air-fuel ratio, which can cause engine performance issues such as a reduction in power, acceleration, and even fuel efficiency.

What are the symptoms of a faulty EGR valve on a diesel?

Your engine has a rough idle.
Your car has poor performance.
You have increased fuel consumption.
Your car frequently stalls when idling.
You can smell fuel.
Your engine management light stays on.
Reduced Horsepower.
Black Smoke or Flames Exiting the Exhaust.
Service Engine Light.

ERG stands for Exhaust Gas Re circulation and it is a function performed within the combustion engine of a car. The measure is sophisticated in the way it is carried out as exhaust gasses are recirculated back into the inlet manifold to be used for combustion again. The reason that ERG takes place is to reduce the production of oxides of nitrogen which is harmful to breathe in and is damaging to the environment. The impact of exhaust gas being recirculated is a drop-in engine performance and fuel economy. Diesel cars are also subject to an increase in the production of soot and harmful particulates. However, new engines are able to utilise a variety of clever electronic control strategies to reduce the impact of using an EGR system. At the heart of the ERG system is the ERG valve, a part which has evolved over time to be more efficient and effective. For example, the part used to be pneumatically operated which limited it to only an 'open' or 'close' setting, however, the ECU is used to allow continuous levels of adjust ability in new models. An ERG valve has to be highly robust as exhaust fumes travel through at extremely high temperatures and velocity. There is also a high volume of soot and particulate matter carried by the fumes and as it has not passed through the DPF, it can build-up in the ERG system, causing problems.

Many Autos Ltd

Unit 4, Tunbridge Jones Industrial Estate

Cradock Road, Reading, RG2 0JT

01189 876300

info@manyautosltd.com

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