P0174 Code (Symptoms, Causes, and How to Fix)

P0174 engine code

Combustion engines are not machines that you can tune perfectly and then expect to run that way forever. They need constant readjusting to run efficiently. Technology in modern cars works to make these small adjustments as you drive. Sometimes, even the most advanced systems cannot correct a problem that develops in your engine. When the … Read more

P0175 Code (Symptoms, Causes, and How to Fix)

P0175 engine code

When you drive, your engine uses a combination of sensors to know exactly how much air and oxygen to release into the combustion chambers at any given time. The fuel and oxygen needs change as you speed up, rev the engine harder, or travel at higher altitudes. Specifically, the powertrain control module (PCM) receives information … Read more

P0135 Code (Symptoms, Causes, and How to Fix)

P0135 engine code

Some oxygen sensors contain a heating circuit to reduce the time it takes them to reach operational temperature after the vehicle is started. The P0135 code is activated when the heating circuit in the air-to-fuel ratio sensor, also known as the front oxygen sensor in bank one, malfunctions. Code P0135 may also indicate a bad … Read more

P0014 Code (Symptoms, Causes, and How to Fix)

P0014 engine code

A vehicle’s variable valve timing (VVT) system improves engine performance and fuel efficiency. It regulates the opening and closing of the exhaust and intake valves, in turn, controlling the fuel-air mix. This control allows for more power, better fuel economy, or a balanced approach depending on the demand on the engine at any given time.  … Read more

P0172 Code (Symptoms, Causes, and How to Fix)

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

P0463 Code (Symptoms, Causes, and How to Fix)

P0463 engine code

Getting stranded in the middle of nowhere with a car that’s low on gas is no fun. This is precisely what might happen to you if you let Code P0463 go untreated. If your “Check Engine” light has popped up and Code P0463 is being displayed, it’s best to get it sorted out as soon … Read more

P2096 Code (Symptoms, Causes, and How to Fix)

P2096 engine code

Your vehicle’s air-to-fuel ratio is critical for your engine performance. If you don’t have the correct air-to-fuel ratio in your vehicle, you can seriously damage your engine. If an OBD2 scanner is indicating a P2096 code, it means there is a problem with your air-to-fuel ratio. Most modern engines have two different oxygen sensors that … Read more

P0404 Code (Symptoms, Cause, and How to Fix)

P0404 engine code

The exhaust gas regulation (EGR) system enables cars to reduce smog emissions. Besides limiting smog emissions, the EGR is also responsible for controlling the engine temperature as well as the ratio of fuel-to-air. Any component failure in this system can activate the P0404 code. When troubleshooting the P0404 code, it is crucial to be thorough … Read more

P0138 Code (Symptoms, Causes, and How to Fix)

P0138 engine code

When your check engine light comes on, it can mean anything from a catastrophic issue with the motor itself to a loose sensor connection. That’s why it’s crucial to run the codes and see what’s going on underneath the hood. Code P0138 indicates an issue with the O2 sensor for Bank 1, Sensor 2. This … Read more

P0741 Code (Symptoms, Causes, and How to Fix)

P0741 engine code

If your vehicle has an automatic transmission, the torque converter is responsible for adding more drive power to your vehicle’s back wheels. When a P0741 code is active, it means your automatic transmission system’s torque converter is malfunctioning. Inside the torque converter, a fluid coupling mechanism is tasked with connecting your engine to your transmission. … Read more