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

Engine Code: P0463 (Fuel Level Sensor a Circuit High Input)

When you look at the fuel gauge on your dashboard, have you ever wondered how it reads the level of gas in your fuel tank? Well, there is a special sensor in the fuel tank called a fuel level sensor which detects the gas level. And, because this is an electronic sensor, it is able … Read more

Engine Code: P2096 (Post Catalyst Fuel Trim System Too Lean Bank 1)

There are oxygen sensors positioned all throughout the exhaust system of a vehicle. Their job is to keep track of the air levels within the exhaust fumes of the system. As these sensors detect the air level, they send this information to the powertrain control module. From there, the module will know how much air … Read more

Engine Code: P0138 (O2 Sensor Circuit High Voltage Bank 1, Sensor 2)

Modern vehicles have oxygen sensors in them, also known as O2 sensors. Their overall purpose is to measure the amount of air in the exhaust system while the exhaust gases are coming out of the engine. The engine control unit is the computer which regularly monitors and communicates with these sensors. O2 sensors will tell … Read more

Explained Trouble Code: P0306 (Cylinder 6 Misfire Detected)

The internal combustion engines of vehicles have a different number of cylinders in them. Some vehicles only have 4 cylinders while others have 6 or 8 cylinders. The combustion process of the air and fuel mixture takes place in each one of these cylinders. As you probably know, this is how engines generate the power … Read more

Trouble Code Info: P0335 (Crankshaft Position Sensor a Circuit Malfunction)

The crankshaft position sensor electronically communicates with the engine control unit of a vehicle. This sensor keeps track of the crankshaft position and rotation speed. Once the engine control unit receives this information from the sensor, it will tell the fuel injector how much fuel to let into the internal combustion chamber. It will also … Read more