I have a p2002 code on. My truck runs perfect. No change in fuel mileage, exhaust leaks or black smoke out of the exhaust. I've heard that the pressure sensor tube being clogged might cause this code. I was wondering if anyone else has had this problem and if they were able to clean out the tube. This is located on the back of the motor. If anyone has done this, what was the easiest way to do it? What tools did you use. A regular socket wont fit. Hell, my dang hand can barley get up there to reach the sensor! Any ideas would be greatly appreciated. Thanks.