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		986 Forum - The Community for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Performance and Technical Chat
How to Test if MAF is working correctly

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01-08-2007, 12:39 PM	#1
ajgray925 Registered User Join Date: Feb 2006 Location: Biloxi, Mississippi, USA Posts: 9	How to Test if MAF is working correctly Has anyone ever tried to test to see if their MAF Sensor is working correctly by the below method? http://en.wikipedia.org/wiki/Mass_flow_sensor "Manufacturers claim that a simple but extremely reliable test to ensure correct functionality is to tap the unit with the back of a screwdriver while the car is running, if this causes any changes in the output frequency then the unit should be discarded and an OEM replacement installed." I think I might try this at home tonight and see since I've been getting the ever so common P1128/P1130 CEL code. __________________ http://i85.photobucket.com/albums/k5...5/CIMG1309.gif 2000 Boxster S

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