What happens if EGR valve is disconnected?

Asked by: Michelle Phillips

If open, generally the car will run rough at idle and engine may have poor power or fuel economy or both. If failed closed, the car will generally ping or prematurely detonate at load. The fix is to replace the valve.

Can you drive a car with EGR disconnected?

Yes it might affect the environment but no harm to engine as such. there are people who are running without EGR for more than 50k km. Also in all remapping they disable the EGR. There are some doubts on temperature increase in cylinder if EGR is disabled.

Can my car run without an 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 the EGR valve be bypassed?

There are several options available to you when it comes to the EGR valve. You can replace the valve with a new one. You can clean your valve with carb cleaner and refit it. Or, you can blank or bypass the valve completely.

Can I just unplug my EGR valve?

Premium Member. If you drive the car long enough to reach full operating temp – THEN pull over unplug the EGR it will not give you a code until the next time you start the car. This is a good way to test the EGR because the with and without comparison is immediate.

What happens if your EGR valve is not working?

A faulty EGR valve can cause problems with the flow and operation of the EGR system leading to performance issues including a reduction in power, reduced acceleration and decreased fuel efficiency. It can also cause vehicle emissions to increase.

Will EGR delete hurt engine?

What some people don’t realize is that yes, deleting an EGR system can help prevent some expensive repairs. But they can also cause major problems in other parts of your engine.

Can EGR cause misfire?

Yes, a bad EGR valve can cause a misfire. When the EGR valve is not functioning properly, it can cause the engine to misfire. The EGR valve is responsible for recirculating exhaust gases back into the engine.

What are the benefits of EGR delete?

An EGR delete consists of using a delete kit to remove the system. The benefits include an improvement in engine performance, fuel economy and not having to worry about emergency maintenance on the EGR (or even the engine itself).

Does EGR delete increase horsepower?

When you delete a vehicle’s exhaust gas recirculation (EGR) system, it automatically boosts oxygen density in the engine’s air/fuel mixture. This will further result in increased horsepower.

Why are EGR deletes illegal?

An EGR delete is NOT the end all solution that most claim it to be. An EGR delete is ILLEGAL in ALL 50 STATES. All vehicles are required to meet federal emissions standards. The penalty for an emissions component alteration can be in the thousands of dollars.