egr valve

Does anyone have a picture of where the EGR valve is on a 98 sportage. I see they sell a gasket but do not see a valve. Mine has been running bad at times and will not start sometomes. Today I changed the Crankshaft sensor and cleaned the idle air sensor. It runs now fine but time will tell if it leaves me stranded. I would like to clean the egr valve as on other cars I have owned if it clogs up it will run real bad.