Service Manual
Table Of Contents
- GENERAL INFORMATION
- MAINTENANCE
- ELECTRONIC FUEL INJECTION
- SPECIAL TOOLS
- Part Numbers / Descriptions
- Fuel Pressure Gauge Kit - PU-43506-A
- Fuel Pressure Gauge Adaptor - PS-48762
- Throttle Position Sensor Tester Kit - 2201519
- Digital Wrench™ Diagnostic Software PU-47063
- Digital Wrench™ SmartLink Module Kit - PU-47471
- Digital Wrench™ - Diagnostic Connector
- Digital Wrench™ - Download Website
- FUEL TANK
- FUEL LINE
- EFI SERVICE NOTES
- EFI SYSTEM LAYOUT
- EFI COMPONENTS
- ELECTRONIC FUEL INJECTION
- ELECTRONIC CONTROL UNIT (ECU)
- FUEL PUMP
- FUEL PRESSURE REGULATOR
- FUEL INJECTORS
- CRANKSHAFT POSITION SENSOR (CPS)
- TEMP / MANIFOLD ABSOLUTE PRESSURE SENSOR (T-MAP)
- IDLE AIR CONTROL VALVE (IAC)
- THROTTLE POSITION SENSOR (TPS)
- ENGINE COOLANT TEMPERATURE SENSOR (ECT)
- IGNITION COIL
- EFI DIAGNOSTICS
- FUEL SYSTEM TROUBLESHOOTING
- EFI SYSTEM BREAK-OUT DIAGRAMS
- Fuel Injector Circuit (PTO)
- Fuel Injector Circuit (MAG)
- Idle Air Control (IAC) Circuit
- Crankshaft Position Sensor (CPS) Circuit
- Fuel Pump / Fuel Level Sensor Circuit
- Fuel Pump Circuit
- Fuel Gauge Circuit
- Engine Coolant Temperature Sensor (ECT) Circuit
- Throttle Position Sensor (TPS) Circuit
- Intake Air Temperature / Manifold Absolute Pressure Sensor (T-MAP) Circuit
- Diagnostic Connector Circuit
- Diagnostic Connector Circuit (EPS Models)
- SPECIAL TOOLS
- COOLING SYSTEM
- ENGINE
- GENERAL INFORMATION - ENGINE
- ENGINE ASSEMBLY VIEWS AND TORQUE VALUES
- Torque & Torque Sequence - Main Engine Components
- Valve Cover / Breather Valve
- Camshaft Carrier / Camshaft / Rocker Arm
- Cylinder Head / Valve / IAFM
- Valve & Spring Height Detail
- Piston / Connecting Rod
- Crankshaft
- Crankcase
- Crankcase - Upper
- Balance Shaft / Balance Shaft Timing
- Crankcase (Lower) With Oil Pump
- Water Pump Coupler
- Water Pump / Water Pump Coupler / Stator / Flywheel
- Drive Coupler (Rear) / Starter Gear
- ENGINE SERVICE
- ENGINE DISASSEMBLY AND INSPECTION
- Valve Cover / Breather Valve
- Rocker Carrier / Camshaft Removal
- Rocker Arm / Rocker Arm Shaft Inspection
- Camshaft / Camshaft Bore Inspection
- Cylinder Head Removal
- Cylinder Head Cleaning
- Cylinder Head Warp Inspection
- Cylinder Head
- Valve Inspection
- Combustion Chamber
- Valve Guide Removal / Installation
- Valve Seat Reconditioning
- Cylinder Head Assembly
- Valve Sealing Test
- Cylinder Head Installation
- Camshaft / Carrier Assembly
- Camshaft / Camshaft Carrier Installation
- Camshaft Timing
- Cam Chain Tensioner Installation
- Camshaft Timing - Quick Reference
- Crankcase Disassembly
- Crankcase (Lower) / Oil Pump Disassembly
- Crankcase Disassembly (Upper)
- Piston / Connecting Rod Removal
- Counterbalance Shaft Removal / Inspection
- Counterbalance Split Gear Replacement
- Crankshaft / Cam Chain Removal
- Cam Chain / Sprocket Inspection
- Crankcase Inspection (Lower)
- Crankshaft Inspection
- Connecting Rod Inspection
- Connecting Rod Big End Bearing Selection
- Piston / Piston Ring Inspection
- Piston Ring Removal
- Piston Ring Installed Gap
- Piston Pin Bore Inspection
- Cylinder Inspection
- Piston-to-Cylinder Clearance
- Honing - Important Information
- ENGINE ASSEMBLY
- Crankcase Preparation - Upper
- Piston Ring Installation
- Piston / Connecting Rod Assembly
- Piston / Connecting Rod Installation
- Crankshaft Installation
- Oil Passage Tube
- Crankcase Assembly - Upper
- Balance Shaft Installation
- Balance Shaft Timing
- Crankcase Preparation (Lower)
- Crankcase Sealant and Torque Values
- Crankcase Assembly
- WATER PUMP
- TROUBLESHOOTING
- TRANSMISSION
- CLUTCHING (PVT)
- FINAL DRIVE
- BODY / FRAME
- STEERING / SUSPENSION
- BRAKES
3.22
ELECTRONIC FUEL INJECTION
TPS Replacement
NOTE: The correct position of the TPS angle on the
throttle body is established and set at the factory. If
the TPS is replaced, repositioned or loosened it
must be recalibrated. Refer to the “TPS Adjustment”
procedure.
1. Remove the seat and upper left-hand side panel (see
Chapter 9 “Seat and Side Panels”).
2. Loosen the hose clamp retaining the intake boot to the
intake plenum.
3. Remove the (4) bolts retaining the intake plenum and
throttle body.
4. Position the throttle body to access the TPS harness and
mounting screws.
5. Disconnect the harness from the TPS.
6. Remove the (2) Phillips-head mounting screws and replace
the TPS.
IMPORTANT: If replacing the TPS or throttle body,
you must perform the “TPS Adjustment” procedure.
7. Refer to “TPS Adjustment” for setting the TPS voltage.
ENGINE COOLANT TEMPERATURE
SENSOR (ECT)
Operation Overview
The engine coolant temperature sensor measures coolant
temperature. The engine temperature sensor is a Negative
Temperature Coefficient (NTC) type sensor, as the temperature
increases the resistance decreases.
Coolant passes through the cylinder and by the sensor probe,
varying a resistance reading which is relayed to the ECU. This
signal is processed by the ECU and compared to its
programming for determining the fuel and ignition
requirements during operation. The ECU also uses this signal to
determine when to activate the fan during operation.
ECT Sensor Test
To quickly rule out other components and wiring related to the
ECT, disconnect the harness from the ECT sensor and start the
engine. After a few seconds, the fan should turn on and the
“Over Temp” indicator should display on the instrument cluster.
This indicates all other components are working properly.
Refer to Chapter 4 for additional ECT information. Polaris
dealers can test the sensor by using the Digital Wrench™
Diagnostic Software (dealer only).
Disconnect
ECT Sensor Resistance Readings
Temperature °F (°C) Resistance
32 °F (0 °C) 5.9k Ω ± 5%
68 °F (20 °C) 2.5k Ω ± 5%
176 °F (80 °C) 323 Ω ± 5%
212 °F (100 °C) 186 Ω ± 5%