Toyota Corolla P0021: OBDII Code Diagnosis

P0021 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Toyota Corolla can have VVT, and is prone to developing this code.     P0021 is a generic OBDII code. This means that it has the same definition regardless of the make … Read more

Toyota Corolla P0014: Causes + How to Fix

P0014 is a relatively common trouble code for vehicles that have Variable Valve Timing (VVT). This includes the Toyota Corolla.  VVT adjusts the position of the camshaft(s) to maximize the combustion efficiency of the motor. P0014 means that the camshaft position is too far advanced from where it should be in relation to normal operating … Read more

Toyota Corolla P0175: Causes, Diagnosis, How to Fix

P0175 is a common trouble code that can appear in the Toyota Corolla. It’s generic, so it has the same meaning for your car as it would any other automobile. There are MANY issues that can cause P0175 in the Corolla. If there are other codes present, use them to eliminate potential causes and save … Read more

Toyota Corolla P0172: Fuel System Rich – Bank 1

A common trouble code with the Toyota Corolla is P0172. This code number references a number given to you when you plug your car into an OBDII scanner. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common. It means the motor is running rich. Toyota Corolla … Read more

Toyota Corolla P0341: CPS – Range/Performance

P0341 is a somewhat common OBDII diagnostic code in the Toyota Corolla. It means that there is a Range/Performance problem. In layman terms this means that there is a problem with the signal coming from the Camshaft Position Sensor (CPS).   OBDII P0341 means that there is a problem with the Camshaft Position Sensor (CPS) … Read more

Toyota Corolla P0340 Code: Diagnosis, Causes, How to Fix

One of the more common engine management trouble codes that can occur in the Toyota Corolla is P0340. It’s a generic code, which means it has the same definition for every car or truck made after 1996. P0340 is related to the camshaft position sensor and points to an issue with the wiring harness connected … Read more

Toyota Corolla P0122: TPS “A” Circuit Low Input

P0122 is a common trouble code with the Toyota Corolla. It’s an OBDII code that references issues with the Throttle Position Sensor (TPS). It is relatively serious problem since it can leave your vehicle stranded or severely limited.     OBDII code P0122 is a serious problem that requires serious attention. Diagnosing it can be … Read more

Toyota Corolla P0457: EVAP System – Leak Detected

P0457 is a somewhat common trouble code with the Toyota Corolla. This code references a number that is given to you when you plug your Corolla into a OBDII scanner. P0457 Indicates that there is a leak in the Evaporative Emission Control (EVAP) System. It is similar to P0455 (large leak) and P0456 (small leak) … Read more