Question about 2000 Audi A4
Have the mechanics checked the egr valve and the vacuum lines and hoses. like vac leaks, n75 bad, vnt sticking, intake sooted, egr passing, and sooted up exhaust turbine. Bad Maf (Oxygen Sensor)
Leak in the vacuum system
Dirty gummed up turbo causing variable vanes to jam or stick
it can be any of above symtoms. hope this steers you in the right way. have a good day !!
Posted on Mar 11, 2011
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Posted on Jan 02, 2017
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