Thank you for the tips guys... I did put oil on the filter, even though it didn't specify on the one sheet Calmini instructions. It looked enough like a K&N that I Figured it probably wouldn't hurt... so perhaps some of that oil got onto the sensor.

Are you saying just wipe off those little square sensor things suspended by wires with a q-tip or should I use something else?

I'll drop by Autozone sometime this weekend and see if they can pull the code for me.

I would like to pick up a OBDII code scanner, anyone know if it can be upgraded for newer cars in the future?