I have a '06 Cobalt LS 2.2L that is having problems. It has thrown some codes P0128 ECT Sensor Below Thermostat Regulating Temp
P0455 EVAP System Large Leak
P0496 EVAP Canister Purge System High Purge Flow
and a few P0300 Random Misfires
It also threw a TPS code (which I have replaced), Fuel...
