Snowmobile Polaris IQ (2007-2008 year). Manual - part 26

4.22

Fuel Systems

Chassis Relay

4.23

Fuel Systems

4

Throttle / Ignition Kill System

System Overview

There are two methods for cutting the ignition on CFI systems.
The first is the software stop system. The software stop system
only applies to the throttle flipper switch. The software stop
system is activated when the throttle flipper switch is closed
(closed throttle), but the TPS (throttle plate position) is still
above idle. When this occurs, the ECU software will determine
the throttle cable is “stuck” and kill the ignition system.

The second system is the hardware stop system. The hardware
stop system is a direct ignition kill system. That is, whenever the
operator turns the key to off, pulls the tether, or pushes the safety
slap switch down, the ignition system is immediately killed.

4.24

Fuel Systems

Vehicle Speed Sensor

4.25

Fuel Systems

4

Exhaust Temperature Sensor

Temperature / Air Pressure Sensor (TBAP)

Crankshaft Position Sensors (CPS)

The 5 tooth crank position sensor picks up all 5 flywheel teeth.

The 2 tooth crank position sensor picks up 2 flywheel teeth.

Both crank position sensors will have a gap to the flywheel pick
up of 0.031" (0.8mm).

These sensors must be in the correct position or the engine will
not run as expected. A sheared flywheel key will cause the
engine to not start or kill if running.

The 2 tooth pick up detects the crank angle and obtains minimal
information of the crank angle when control enters into limp
home mode.

5 tooth pickup is to obtain the following information in
combination with the 2 tooth pickup.

• Judge direction of rotation (forward and backward)

• Ignition advance angle control

• Injector drive angle control 

• Excess advance ignition control at reverse

• MAG / PTO cylinder detection

Sensor Specifications

Resistance Values

2.3M

Ω @ 392_F (200_C) - 76Ω @ 

1652_F (900_C)

= T 

Exhaust Temperature Sensor Torque

32 Ft.Lbs. (44 Nm)

Sensor Specifications

Pins 1 to 2 (Temperature)

59_F (15_C) = 3000

Ω

68_F (20_C) = 2500

Ω

77_F (25_C) = 2000

Ω

Pins 1 to 4 (Pressure)
Pins 3 to 4 (Pressure)

2400 - 8200

Ω

3400 - 8200

Ω