08-22-09, 07:15 PM
I just fixed this problem and wanted to put the info out there. Mine was not the AIR motor, I could hear it running every cold start. I checked the solenoid and it was working. I then checked each check valve with a vacuum pump and found the rear one not pulling a vacuum. I plugged the vacuum hose going to the rear check valve and the code went to P1415 (AIR system bank 1). Replaced the valve, no more check engine light.