Mk4 Golf 1.8T 2004, has an issue with a consistent check engine light probably having to deal with this. These tubes coming from the fuel injection system I believe had been open.
An mk4 without a check engine light?
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Volkswagen GOLF 4 I have currently a VW Golf 4 '1998 1.9 TDI with ALH engine, as for now a real problemcar to me. From