Do all engines have EGR?

EGR stands for Exhaust Gas Recirculation and virtually all modern cars, petrol or diesel, employ this technique to control pollutants in the exhaust via an EGR valve. Some use what's called 'internal EGR', where there is no EGR valve as such.

Is EGR only on diesels?

EGR valves are installed on all modern diesel engines, and they do exactly what it says on the tin; they recirculate exhaust gasses. Hot exhaust gasses coming out of the engine are piped back into the inlet manifold, all in an effort to reduce nasty NOx emissions.

What does an EGR do on a gas engine?

The EGR system works by returning a small portion of exhaust gas to the engine's combustion chambers through the intake manifold, lowering combustion temperatures and therefore reducing the amount of NOx emitted. The EGR valve is the main component of the EGR system and it's normally closed.

Related Question Do gas engines have EGR?

Does my car have EGR?

Answer: You're going to be looking towards the side of the engine. The hose for the EGR valve connects to the engine just below the upper, large, radiator hose. The EGR hose is smaller than the radiator hose and easy to spot. Follow the hose back on the side of the engine and you will find the EGR valve.

How much does an EGR valve cost?

The average cost of replacing the EGR valve in your vehicle is anywhere from $250 to $350 on average, depending on your vehicle's year, make, and model as well as the type of system it has. The cost of parts will be somewhere around $190 to $270, while the cost of labor will be anywhere from $60 to $80.

Does EGR increase fuel economy?

The addition of exhaust-gas recircula- tion (EGR) has been shown to improve the fuel consumption of gasoline engines, either port fuel injected or direct injected, by reducing pumping losses and knock and eliminating the enrichment region.

Does EGR shorten engine life?

It does shorten the life EGR systems took a million mile semi truck engine down to a 600,000 mile engine.

Why do people blank off the EGR valve?

Biggest reason for blanking it is to stop all the sooty crap clogging up the inlet system and sensors.

Will a car run without EGR valve?

It might affect the environment but it is not harmful to the engine. Some people are running for more than 50k km without EGR. The EGR is disabled in all remapping.

Can a bad EGR cause stalling?

EGR is used during part to full throttle operation, but never at idle, because it will cause severe engine roughness or stalling.

Where is EGR located?

The EGR valve is usually located near or attached to the intake manifold, with a tube running to the exhaust manifold. There should also be a vacuum or electrical connector (or both) running to the valve which will need to be detached.

Do I need an EGR?

The EGR valve in your vehicle, also known as the exhaust gas recirculation valve, is not necessary for your vehicle to run properly and therefore a lot of people don't think they need to get it replaced when something goes wrong. Yes, your car can run without it, but it should not run without it.

What does EGR look like?

What is a code P0402?

P0402 is an OBD-II generic code that the engine control module (ECM) has detected indicating the engine exhaust gas recirculation (EGR) valve is flowing too much recirculated exhaust gases when it is commanded to open the flow of gases into the intake manifold.

What is P0406 code?

The P0406 code is the result of the exhaust gas circulation (EGR) sensor A having a high circuit voltage. This code is set when the ECM identifies the EGR voltage is higher than the specified range, thus triggering the check engine light to illuminate on the vehicle dashboard.

How much HP is EGR delete?

As for hp gains you may get around 1 to 2 hp from it and thats assuming that you have clean fuel and clean air gettin into the intake.

How much horsepower does EGR delete add?

In many cases, a proper DPF delete will result in gaining over 100-horsepower while improving your fuel mileage and the lifetime of your vehicle.

Can EGR cause check engine light?

Check engine light: as with most engine management components, a problem with the EGR valve may trigger the check engine light. Engine performance issues: if the valve is stuck open the vehicle's air-fuel ratio will be disrupted causing engine performance issues such as reduced power, poor acceleration and rough idle.

What causes an EGR to fail?

The failure of the EGR valve on the vehicle is not out of the ordinary, as this issue can arise on most modern diesel engines. The failures are usually caused by a build-up of deposits in the EGR valve over a period of time that causes them to stick.

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