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1998 Boxster Secondary Air Pump
The secondary air pump on my 1998 Boxster does work but not when it should. Everywhere I read that normally it start when the engine is cold to help emissions control. Mine starts when engine is hot after a long highway run. It start and run for about 1 minute. If I stop the engine and start again, the pump also start but if I leave the Engine to cool down then it won't start. The CEL is on most of the time but when the pump start 3 or more consecutive times it goes off.
What could make it to behave like this?
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