2007-2011 Polaris IQ Snowmobiles Service Manual, Page 194Get this manual
Fuel Systems Engine Coolant Temperature Sensor Fuel Rail BleedingPressure Testing
All CFI engine fuel return hoses feature an inline Schrader valve that can be used to bleed the fuel system pressure and observe fuel system pressure when using the fuel pressure gauge and specified adapterSCHRADER VALVE
Sensor Specifications
Operating Temperature Range Resistance Installation Torque -22_F+248 _F (-30_C120_C) 2.42.6K 68_F (20_C) (Measure in stirred water) 29 ft.lbs(39.2Nm)
SCHRADER VALVE
Knock Sensor
The model year and engine model will determine which fuel pressure tool adapter is required to complete both tasks