Mine threw a code the second I started the car this morning. Took it straight to the dealership. They plugged it in and found the front O2 sensor threw an error code. They didn't think a CAI could cause this problem, so they cleared it and are ordering a replacement under warantee. The light didn't come on while driving to work, but still. Is this happening only to cars with CAI. My understanding is that the computer shouldn't even accept codes from the O2 sensor until the car is warmed up. Gimme the scoop, anyone?