My service light came on and i have a friend at the dealer and he pluged it in and it came out with-

Bank 1 sensor 1 - P0135

and

second bay (Somthing i frogot) Bank 2 - 1416

need to know what this mean and if i need to fix it or what. he told me not to worry about it he shut the light off. Thaks Dylan

 

My car threw the P1416 code not too long ago. It's labeled as the Auxilary Emission Control Malfunction. It's the AIR check valve, a $12 part on gmpartsdirect.com.

 

P0135 - 02 Sensor Heater Circuit Manfunction (Bank 1, Sensor 1). Either the wires or the front driver's side 02 sensor is bad.

P1416 - Port Air Circuit Malfunction (AIR) System Bank 2. Passenger side air check valve is bad.

I'd replace both if the codes show up again - especially the 02 sensor!