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CEL code P0418


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My wife's 2002 Boxster Tip CEL came on and with the help of a friends code checker we got:

P0418 Secondary Air Injection System Relay "A" Circuit Malfunction.

After hunting thru the Bentley manual I'm guessing that the relay is #10 on the relay panel 2 in the back trunk, left side, (the manual only refers to 1998 to 2001...even thou it covers 1997 to 2004). While I grant this may not be the fix, replacing a (hopefully) inexpensive relay is a painless first step in an attempt to avoid the horrors of the Porsche Service Department and the resulting rape of the little embossed card.

Is this a Porsche specific part and if so, would someone know either the part # or where I might find it?

Thanks

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