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Hello You can test but why are you. Do you have a idle problem? There is a an idle adaptation process you can perform if your idle speed is not correct. The 3 wires going to the idle motor are #1 isp closed #2 ground #3 isp open. If your vehicle is a 99 and down Boxster. A dirty throttle body will affect you idle quality also. That can be cleaned.
Last edited by jwgn777; 02-12-2013 at 01:16 PM..
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