The EGR (Exhaust Gas Recirculation) valve is located on the rear of the engine, just below the throttle body. It is held in place by two bolts.
Here is a more detailed explanation:
1. Locate the throttle body. The throttle body is a large, round metal component located on the front of the engine. It has a large air inlet and a smaller air outlet.
2. Look below the throttle body. Just below the throttle body, you will see the EGR valve. It is a smaller, metal component with two vacuum hoses connected to it.
3. Confirm the location of the EGR valve. If you are still not sure if you have found the EGR valve, you can check the vehicle repair manual for your specific model.