SLK 230 "P0410" sec. air inj. malfunc.
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11-24-2003, 08:55 PM
Join Date: Mar 2001
Location: Evansville WI
Air injection check valve, the big metal one, pain in the butt to get to over on the right side of the engine. Replaced alot of them.
You can remove it and test it, usually referred to as the "kazoo" test.
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