What is the code P200200 on Audi a6?
Dreaded P200200 Fault Code Particulate trap (bank 1) Efficiency below threshold Only EML on not DPF light, having done a bit of digging this is most likely a clogged / blocked EGR. The P2002 code indicates a DPF below threshold efficiency, often due to soot buildup or sensor faults. Cleaning the DPF and replacing the differential pressure and soot sensors are common fixes. If the code returns, inspect for exhaust leaks, wiring issues, or ECU faults.
What happens if you ignore a P2002 code?
Ignoring the code can lead to: Reduced fuel economy. Decreased engine performance. Potential damage to the DPF or other emissions components. DPF replacement can be an expensive, but necessary process to maintain your vehicle’s performance and emissions compliance.