You mean P0... not P1...? If so, yes look for a leak.

 

for what it is worth, I bought an app for my droid called torque pro. It is a code reader and much more. It cost five bucks. I then bought a obdii bluetooth connector for 20 bucks on ebay for each of my cars. I can pull up the app and do all sorts of things, and reset codes.

Also, I just finished doing the short route imt orings only to develop a vacuum leak in the breather elbow a week later undert the intake manifold. That is my next challenge.

 

My light went off by itself. The old filter was really dirty. Do you think that it is possible that the computer was adjusting for the dirty filter and that when the filter was changed it had to readjust causing the air codes to come up? Sorry to hear your light has come on.