Where is the EGR valve located in the 2009 Corolla?

Locate the EGR valve on the engine side, on the driver's side of a 2009 Toyota Corolla. Most valves resemble a metallic mushroom and are about 2 to 3 inches in diameter. Integral to the vehicle's engine management system, the aptly named exhaust gas recirculation valve, or EGR valve for short, recirculates finely metered quantities of exhaust gas to the engine intake system for increased engine efficiency, reduced fuel consumption, and lower NOx emissions. 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. EGR valves can become stuck 'open' or 'closed' due to a build-up of soot particles, carbon deposits, and dirt from fuel.