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Originally Posted by jokerji
Could someone tell me in detail on how to clean the EGR valve. I'm getting the same P0401 message and the infrequent car stalls and would like to get this over with!!
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I have cleaned the EGR on my Tercel a few times. I have used carb cleaner, the spray, and q-tips. Just don't get the spray in the diaphram (stay away from the rubber vacume lines). I am not sure about the Camry but there were two ports going into the intake from the EGR valve that were completely clogged on my car. I had to take a screw driver and pick the carbon out of these. I had to use some spray between picking. If you can take the EGR off and the car doesn't run any different those ports are clogged. It takes about 30 minutes to clean it all out but it has worked for me. With 178K on the tercel I have found out that I need to remove the EGR about every 25K now. Make sure you get all of the little pipes cleaned out as well that might be sticking out from the EGR. Hope this helps