What is the code P0401 on a VW Polo?
There are many causes for the P0401 trouble code activating. The most common are: Faulty or clogged EGR valve. Low vacuum opening the EGR valve from the EGR control solenoid resulting in the EGR valve not opening all the way. A P0401 error code can cause excessive internal engine ignition and pinging as well as pre-ignition damage to the pistons and valves of the engine. A P0401 code is considered incredibly serious as it can cause major damage to your vehicle if left unresolved.Can I Still Drive with a P0401 Code? Do not attempt to drive your vehicle anywhere except for a service center. This issue must be solved immediately by taking your vehicle to a mechanic.While it’s typically safe to drive with a P0401 code, it is recommended to address it as soon as possible. Prolonged driving with an insufficient EGR flow can contribute to increased emissions, reduced fuel economy and, in some cases, lead to engine overheating or knocking, especially under high load conditions.
What is the code po401 on a VW?
The meaning of fault code P0401 DTC P0401 is registered by the engine control unit (engine control module) when it determines that an insufficient amount of exhaust gas is being redirected through the car EGR valve. The Exhaust Gas recirculation (EGR) valve is complex technology that can fail for various reasons, including electrical signals, mechanical malfunction or simply the valve becoming blocked. Electrical failures within the EGR valve would produce the error codes: P0403 00 – EGR Valve (N18) – Malfunction.
What is the code P0401 on a VW?
The P0401 code indicates Exhaust Gas Recirculation (EGR) Flow Insufficient. P0401 means that the engine control module (ECM) has recognized that the EGR valve is not delivering a sufficient flow of recirculated exhaust gases to the engine. While it’s typically safe to drive with a P0401 code, it is recommended to address it as soon as possible. Prolonged driving with an insufficient EGR flow can contribute to increased emissions, reduced fuel economy and, in some cases, lead to engine overheating or knocking, especially under high load conditions.