Vcds for 00 golf tdi3/4/2024 ![]() ![]() So it would be totally plausible that your EGR system test could not be run by the ECU with a bad exhaust flapYes there is soot in the tail pipe, dealer says the DPF is not covered under the extended warranty I am not talking about anye xtended warranty, I am talking about the normal factory warranty. That is what that exhaust flap's primary function is: to force the exhaust back into the low pressure EGR system. yes, the low pressure EGR system cannot operate without the exhaust flap. 2 Weeks ago the Dealer replaced or fixed the exhaust flap since i had CEL, the job was done under warranty, now i have intermittant CEL P0401 code.
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