One of the most common trouble codes with the Fiat 500 is P0174. It indicates that your Fiat 500 is running lean on the bank two side of the engine. P0174 and P0171 (fuel trim lean bank one) are the most frequently seen air/fuel mixture-related codes. If they appear together, it reduces the list of … Read more
P0021 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Fiat 500 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
P0305 is a fairly common trouble code with the Fiat 500. It’s and OBD2 code and stands for: P0305 is certainly a cause for concern, and should be considered a threat to the drivability your 500. The nice thing about P0305 is that it’s a cylinder specific trouble code, which makes diagnosing the problems simpler … Read more
P0741 is a very common OBDII trouble code. It’s know to affect the Fiat 500 quite often. Here’s what it means: P0741: Torque Converter Clutch Circuit → Performance or Stuck Off The 500 uses a clutch in the torque converter to lock the engine and transmission together at highway speed. P0741 can register whenever this … Read more
A common trouble code with the Fiat 500 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. Fiat 500 … Read more
One of the most common trouble codes with the Fiat 500 is P0171. It indicates that your Fiat 500 is running lean on the bank one side. It’s the most common air/fuel mixture-related code. It’s not the most complicated OBDII trouble code to diagnose. It is also one of the most common codes. The most … Read more
P0141 is a very common OBDII code that occurs in the Fiat 500. It is caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 1 sensor 2, which is downstream from the catalytic converter. It technically stands for: The purpose of the heated element in the oxygen sensor … Read more
P0135 is a very common OBDII code that occurs in the Fiat 500. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 1 sensor 1. It technically stands for: The purpose of the heated element in the oxygen sensor is to quickly bring your O2 sensor … Read more
The P0128 OBD II trouble code indicates that your Fiat 500’s engine coolant temperature has not reached its required operating temperature within a certain amount of time after starting the car. This code can appear as soon as you start your vehicle, or it can also occur while driving. It’s essential to address this issue … Read more
This page is meant to help you troubleshoot the Fiat 500 P0420 trouble code. It covers the P0420 code’s meaning, symptoms, causes, and possible solutions. P0420 is the most common OBDII code and is virtually never a breakdown risk. A failing oxygen sensor or bad catalytic converter are the most common causes of P0420. Table … Read more