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

P0306 Code (Symptoms, Causes, and How to Fix)

P0306 engine code

Vehicles are powered by the combustion of air and fuel, which takes place in different engine cylinders. This is how a vehicle generates the power it needs to accelerate and spin its wheels. A vehicle usually has 4 to 8 engine cylinders depending on its power needs. When one of these cylinders misfires, the car’s … Read more

P0106 Code (Symptoms, Causes, and How to Fix)

P0106 engine code

The P0106 code indicates that the manifold absolute pressure (MAP) sensor has been triggered. This sensor problem is common in cars with high mileage (100,000 miles or more). The MAP sensor controls a broad range of systems in your vehicle. If it’s faulty, the engine won’t run right, and it can cause serious drivability issues.  … Read more

P0335 Code (Symptoms, Causes, and How to Fix)

P0335 engine code

The purpose of the crankshaft position sensor (CKP) is to measure the rotational speed (RPM) and precise location of the engine’s crankshaft. Without this sensor, you wouldn’t be able to start your vehicle’s engine. Most car owners don’t know about the crankshaft position sensor until they receive the error code P0335 or the engine dies. … Read more

P0496 Code (Symptoms, Causes, and How to Fix)

P0496 engine code

It’s never a good time to see that dreaded ‘Check Engine’ light illuminating the dashboard of your car. While there are many causes for the ‘Check Engine’ light to pop up, modern technology allows us to distinguish them by reading the DTCs (diagnostic trouble codes) using an OBD2 scanner. DTCs are the way the onboard … Read more

P0440 Code (Symptoms, Causes, and How to Fix)

P0440 engine code

Your vehicle’s internal processes create vapors that release into the atmosphere. The Clean Air Act (CAA) put in place by the Environmental Protection Agency (EPA) regulates the volume of those vapors that a vehicle can emit before passing a designated threshold. The process of gasoline moving to the engine creates some of those harmful vapors. … Read more

P0300 Code (Symptoms, Causes, and How to Fix)

P0300 engine code

If you’ve got a P0300 error code on your hands, brace yourself as you’re likely dealing with a complicated diagnostic and repair process. As things go, this error code can mean different things caused by different problems. What Does Code P0300 Mean? Code P0300 means that one or more engine cylinders are misfiring. An engine … Read more

P0128 Code (Symptoms, Causes, and How to Fix)

P0128 engine code

The P0128 error code suggests that your car’s coolant temperature was at an unusual level after operating your vehicle. Your engine coolant should reach around 160° F (71° C) within 15 minutes of starting the engine. The powertrain control module (PCM) monitors signals from the coolant thermostat to determine if it reaches this temperature in … Read more