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Old 11-27-2002, 02:44 AM
Ken300D Ken300D is offline
Registered Diesel Burner
Join Date: Aug 2001
Location: Northern Virginia
Posts: 2,911
I saw some reduction in turbo-boost smoke with a clean new air filter. It was surprising how much stuff was trapped in the old one. Also, if your EGR valve has not been disabled, your intake manifold may be caked up with soot to the extent of reducing air flow. Less air, more smoke.

1982 300D
1987 300D (subject of this discussion)
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