The P0131 code is an OBD-II diagnostic trouble code that indicates low voltage in the Audi A4’s Oxygen (O2) sensor circuit for Bank 1, Sensor 1 (B1S1). This sensor plays a crucial role in maintaining optimal engine performance by detecting the air-fuel ratio in the exhaust, then sending this data to the A4’s engine control … Read more
P0330 is a powertrain OBDII trouble code that has the same meaning for the Audi A4 as it would any other vehicle. By definition, it means that the vehicles ECM/PCM isn’t getting the proper signal from the knock sensor. Clearing this code typically requires a new knock sensor. The second most common cause is … Read more
A trouble code is a signal that is generated by an automatic transmission system whenever it detects an issue in the Audi A4 that requires your attention. The P0700 code is a general code that is typically accompanied by another code that specifies the specific problem. This code is part of the OBDII system and … Read more
P0130 is a very common OBDII code that occurs in the Audi A4. It is typically caused when the Oxygen Sensor voltage is not within normal operating conditions. Audi A4 P0130 Symptoms Typically, the only symptom of P0130 is going to be the service engine soon light. In some cases, there can be other symptoms … Read more
The P0440 code is a common trouble code that many Audi A4 owners may encounter. It indicates that there is an issue with the car’s Evaporative Emission Control (EVAP) system. Specifically, the EVAP system is malfunctioning. A variety of causes can trigger the P0440 code, with the most common one being a loose or damaged … Read more
One of the most common trouble codes with the Audi A4 is the P0496 code. This code number references a number that is given to you when you plug your A4 into an OBDII scanner. Below, you’ll find the most common symptoms and ways to diagnose the P0496 in your Audi A4. Good Luck! … Read more
P0161 is a very common OBDII code that occurs in the Audi A4. It is typically caused by a failure in one of the elements that heat the oxygen sensors, specifically bank 2 sensor 2. Replacing the Oxygen sensor will fix the problem a majority of the time. Some of the other causes of P0161 … Read more
P0155 is a very common OBDII code that occurs in the Audi A4. It is caused by a failure in one of the oxygen sensors heated elements, specifically bank 2 sensor 1. The purpose of the heated element in the oxygen sensor is to quickly bring your O2 sensor up to normal operating temperature after … Read more
P0175 is a common trouble code that can appear in the Audi A4. 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 A4. If there are other codes present, use them to eliminate potential causes and save … Read more
P0017 in the Audi A4 is predominantly caused by a few different things. It is typically thrown when the Crankshaft Position Sensor and the Camshaft Position Sensor are out of alignment by a certain number of degrees, or if there is an issue with the wiring, or one of the sensors themselves may have … Read more