ML320 P410 Help
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ML320 P410 Help
I have a 1998 ML320 with a P410 code. Upon starting cold, secondary air pump doesn't come on. I tested the pump, relay, fuse, check valves, all work perfectly. What comes before the relay, what starts the process?
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siliko
Mercedes Benz Forum Help & Suggestion Center
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Apr 12, 2008 06:51 PM