2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 393Get this manual

2006-2008 Yamaha Snowmobiles Apex/Attak Factory Service Manual, Page 393

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FUEL INJECTION SYSTEM
Crankshaft position sensor Intake air pressure sensor (open or short circuit) (pipe system) Throttle position sensor (open or short circuit) (stuck) Intake air pressure Atm