rustyrail54
New member
My wife's 2014 Chevy Sonic 1.8L ECOTEC check engine light has turned on. Took it to an auto parts store and they checked with a OBD2 reader and said the error code is P0171. They suggested adding injector cleaner to the gas, it's been a week and the light is still on. Reading online and it has been suggested to clean the MAF Sensor and replace the Oxygen Sensor. Question? Where are these two items on the engine? and are they easy to access?