Jul 21, 2001 · Check engine light came on, VCDS diagnostics as follows. 1 Fault Found: 001025 - EGR System P0401 - 001 - Insufficient Flow - Intermittent - MIL ON Freeze Frame: Fault …

Jan 9, 2011 · I think all these threads on this form concerning frequent intermittent P0401 proves that the EGR system in the biggest engineering debacle in the CJAA 140 CR TDI, and VW …

Oct 1, 2017 · TDI 2014 VW Sportwagen 2.0 TDi May 8, 2021 #14 Couldn't ... today got P2002 and P0401 on my Golf TDI 2011 ...

Feb 1, 2014 · I think I've diagnosed this correctly, but I'd love for confirmation. P0401 - EGR System insufficient flow -Tested vacuum to the N18 valve. ~22in/hg -Had someone operate …

Mar 1, 2020 · It shows a "P0401 (001025) EGR Insufficient Flow -- Intermittent" code and a "P2002 (008194) Particulate Trap, Bank 1, Efficiency Below Threshold" code... The car has …

Oct 22, 2016 · P046F, P0477, P048A, P048B, P048C, P0401. Some TDI-CR engines have a filter for the Exhaust Gas Recirculation (EGR) that can become restricted and cause a "Insufficient …

P046F, P0477, P048A, P048B, P048C, P0401. Some TDI-CR engines have a filter for the Exhaust Gas Recirculation (EGR) that can become restricted and cause a "Insufficient Flow" …

Dec 11, 2001 · VW TDI Discussion Areas. TDI 101 Engine code P0401. Thread ... On the ALH TDI P0401 mean EGR Insufficient ...

Feb 24, 2012 · I can't find a solution to this problem. Today, I took a black n18 valve (which the tab isn't white) out of a Beetle (tdi) to replace the one I have in my 2003 Jetta (tdi) with a code …

May 31, 2023 · 2010 VW Jetta CJAA TDI throwing both codes. Removed EGR and cleaned. Opened cover to verify valve opens smoothly by turning the gears. Ran output test on VCDS …