The sensor is actually the MAF (Mass Air Flow). Remove the Air Cleaner, Look into the plastic tube that runs towards the engine from the Air Filter. In the fat section about 4 inchs from the connection to the air filter you will see a sensor on the bottom of the tube pointing staright up. The sensor has a square window in it, with a thin wire running across the window. I actually found a little piece of crud on the wire. After I removed the crud with tweezers I sprayed Carb cleaner on it.
Good Luck | 
