P0172 Code (System Too Rich Bank 1)

P0172 engine code

Air and fuel are the heart of the internal combustion process. The proper amount of air and fuel must enter the internal combustion chamber if the ignition is going to be successful. Otherwise, you might have a situation where your engine either consumes too much fuel or under performs. The engine control unit (ECU) normally … Read more

5 Symptoms of a Bad Oxygen Sensor (and Replacement Cost)

bad O2 sensor symptoms

In this article we are going to go over a very important sensor in a car’s engine called the “oxygen sensor”, commonly referred to as an O2 sensor.  Afterwards, you should know the basic function, working principle, bad symptoms, and average replacement cost of an oxygen sensor. How an Oxygen Sensor Works The internal combustion … Read more