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				Engine light stays on
			 
			 
			
		
		
		
			I bought a 1998 Boxster & my light stays on ,I had it on the machine these codes came up? P0 410 Secondary Air Injection system malfuction, PO 154 Oxygen Sensor Circuit No activity detected bank 2 sensor 1. My buddy had this on his laptop he figures it's a vacuum leak? Can someone give me some ideas on how to fix my baby? 
regards,R
		 
		
		
		
		
		
		
		
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