What is your question?
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What is your question?
my 2006 Jetta 1.9l tdi, makes a sucking sound when accelerating. Heavy black smoke rolls out. seems to run ok once on highway, but mpg is slipping.
1 Reply
EGR stands for exhaust gas return.... you noted heavy smoke ssssso. Also most egr systems run on some type vaccum. And they will effect gas milage. other symptoms may include stalling, a "miss", all around poor performance.