Audi A4 P0341: CPS – Range/Performance

P0341 is a somewhat common OBDII diagnostic code in the Audi A4. 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

Audi A4 P0012: “A” Camshaft Position – Over-Retarded

P0012 is a common trouble code. It affects vehicles with variable valve timing (VVT). The list of VVT vehicles is growing, and the Audi A4 can have VVT, and is known to develop this code. P0012 is generic, which means that it has the same definition for the A4 as it does on any other … Read more

Audi A4 P0113: IAT Sensor → High Input Problem

P0113 is an OBDII trouble code that occurs when the Audi A4′s engine management computer detects that there is an issue with the Intake Air Temperature (IAT) Sensor, specifically that there is a High Input Problem with it. P0113: IAT Sensor – High Input Problem The IAT sensor is responsible for measuring the air temperature … Read more

Audi A4 P0325 Code: Causes + How to Fix

The Audi A4 is a reliable and luxurious vehicle, however, it is not immune to technical issues. If you’re experiencing a P0325 trouble code, this article will provide you with the causes and solutions for this issue. We’ll explain the underlying causes and provide step-by-step instructions for resolving the problem. The knock sensor’s primary role … Read more

Audi A4 P0304: Cylinder 4 Misfire – Diagnosis + Fix

If your Audi A4 has the P0304 trouble code, you should know that it’s about as common of a code as there is. It’s a generic OBD IIcode (same meaning for all vehicles) that indicates that your car’s fourth cylinder is misfiring. P0304 is a drivability concern and should be dealt with right away. If … Read more

Audi A4 P0449: Vent Valve Solenoid – Circuit Malfunction

A somewhat common issue with the Audi A4 is the P0449 code. This code references a number that is given to you when you plug it into a OBD2 scanner. P0449 deals with the evaporative emissions control (EVAP) system. It often appears with, or is related other codes, such as P0420, P0446, and very often … Read more

Audi A4 P0340 Code: Diagnosis, Causes, How to Fix

One of the more common engine management trouble codes that can occur in the Audi A4 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

P0303 Audi A4: Cylinder 3 Misfire Diagnosis

If your Audi A4 has the P0303 trouble code, you should know that it’s about as common of a code as there is. It’s a generic code (same meaning for all vehicles) that indicates that your car’s third cylinder is misfiring. P0303 is a real drivability concern and should be dealt with right away. If … Read more

Audi A4 P0446: Meaning, Causes, How to Fix

A prevalent issue with the Audi A4 is the P0446 code. This code corresponds to a specific number obtained when connecting your A4 to an OBDII scanner. A faulty vent control valve most commonly causes P0446. Definition P0446: EVAP System – Vent Control Circuit – Malfunction Symptoms Usually none Common Causes Bad EVAP Vent Control … Read more

Audi A4 P0442 Engine Code: Causes + How to Fix

One of the most common issues that happens with the Audi A4 is the P0442 trouble code. This code appears when connecting the vehicle to an OBDII scanner and pertains to the emissions system.  While it’s unlikely to cause a breakdown, it can be bothersome and may result in a failed emissions test for your … Read more