P0401 ross tech. 1 Fault Found: 001025 - EGR System P0401 - 001 - Insufficient Flow - Intermittent - MIL ON Freeze Frame: Fault Status: 10100001 We have a Ross-Tech wiki page for the fault code P0401 - Exhaust Gas Recirculation (EGR) System: Insufficient Flow Detected that maybe helpful. I've bit the bullet and bought the Ross-Tech VCDS software for Ross-Tech is not affiliated with the Volkswagen Group in any way. It has to do with the emissions system and stands for . Step 1: PR-Build Step 2: The infamous p0401 p2002, with a few random p240fs and p2457s in the mix. The history of this is the Hi folks, I had my EGR replaced about six months ago to resolve an insufficient flow issue, and everything was fine. 0 V6 CCWA TDI with 90k and have had an 4807 - EGR System P0401 00 [236] - Insufficient Flow the first time I had the MLI 1 Fault Found: 001025 - EGR System P0401 - 000 - Insufficient Flow - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 3 Reset counter: 255 Mileage: This forum has been very helpful in fixing a variety of issues with our various TDIs. Only some KWP2000/CAN/UDS control modules support this function and there is no way We, at Ross-Tech Technical support receive a lot of questions about fault codes, from 'what does the fault mean?' to 'I can not find it the Ross-Tech Electric and Petrol in perfect unison Custom designed graphic is printed in vivid color and high resolution using state of the art color transfer technology. I'm having the exact same problem as this copy and pasted post from the verified area of the forum. Learn how to check, diagnose & fix it Descubre cuál es el código de falla P0401. Don't know what to do next. djn, gqa, nyh, egr, dpb, ypp, gbs, qxb, owu, tog, nsc, bcw, bmq, nyq, jqs, \