Question.... My 2011 Aveo5 LT is kicking multiple codes, P0700, P0455, P0101, P0073, P0073-74, U0001, U0100.... Will start and drive but is very slugish unless you push the accelerator to the floor. cat temp is about 900... obd2 scanner keeps saying it lost communication. At first replaced the maf due to a code but now i am lost. please help...