hi guys got a 94 auditdi its making knocking noise told its not mechanical but could be fuel side iv changed all filters and glow plugs and hasnt stopped also sometimes when i excelerate it holds back then when i let throttleup and put down again it goes it also doesnt seem very responsive please help

 

You might be better off posting this in the forums at tdiclub.com. There is all kinds of TDI knowledge there.