The P0404 code for Volkswagen indicates a problem with the Exhaust Gas Recirculation (EGR) control circuit, specifically that the range or performance of the circuit is out of the expected parameters.

2023年1月7日 · What Does the P0404 Code Mean? The P0404 diagnostic trouble code means that the Exhaust Gas Recirculation Circuit Range/Performance fault has occurred. This generic trouble code comes from the powertrain control module (PCM) and indicates that the Exhaust Gas Recirculation (EGR) valve is not functioning correctly.

2019年2月13日 · While there are several issues that can throw the P0404 code in the Golf, the most common issue is either going to be carbon buildup on the EGR valve, the EGR valve itself (going bad), or wiring issues. Most of the time, the only symptom of P0404 is going to be the service engine soon light itself.

2024年3月24日 · - OBDII code P0404 indicates a problem with the Exhaust Gas Recirculation (EGR) circuit, specifically related to range/performance issues. 3. What are the possible causes of OBDII code P0404? - Possible causes of code P0404 include a faulty EGR valve, clogged EGR passages, wiring issues, vacuum leaks, or a malfunctioning EGR position sensor. 4.

The diagnostic trouble code (DTC) P0404 stands for “Exhaust Gas Recirculation Circuit Range/Performance”. What Does the P0404 Code Mean? The P0404 code indicates that your powertrain control module (PCM) detects that the performance of the EGR valve or sensor is not within the specified limit .

2022年4月11日 · What Does Code P0404 Mean? P0404 definition: Exhaust Gas Recirculation Circuit Range/Performance; Issue Severity: MODERATE – Extended driving with this code may cause internal engine damage. Repair Urgency: Get this code fixed as soon as possible.

A P0404 code is defined as Exhaust Gas Recirculation Circuit Range/Performance; meaning that the EGR valve is performing outside your vehicle’s parameters. More specifically, the P0404 code can mean the valve is closed when it should be open or vice-versa or …

2025年2月10日 · If your check engine light produces a P0404 code, one of the components in the EGR system is causing it. When troubleshooting a P0404 code, thoroughness is key as the EGR valve isn’t the only suspect. Read on to learn how serious a code P0404 is and how to properly troubleshoot and fix it.

OBD2 Code P0404 Volkswagen definition: The EGR (Exhaust Gas Recirculation) system’s purpose is to redirect exhaust gas back into the cylinders. Since exhaust gas is inert, it displaces oxygen and fuel, thereby lowering cylinder temps, which, …

2020年6月14日 · Repair Information for P0404 Volkswagen code. Learn what Exhaust Gas Recirculation Control Circuit Range/Performance means, location and how to repair?