4.14
FUEL INJECTION
CRANKSHAFT POSITION SENSOR
(CPS)
Operation Overview
The engine speed sensor is essential to engine operation,
constantly monitoring the rotational speed (RPM) and position
of the crankshaft.
A ferromagnetic 60-tooth ring gear with two consecutive teeth
missing is mounted on the flywheel. The inductive speed sensor
is mounted 1.0
±
0.26 mm (0.059
±
0.010 in.) away from the
ring gear. During rotation, an AC pulse is created within the
sensor for each passing tooth. The ECU calculates engine speed
from the time interval between the consecutive pulses. The two-
tooth gap creates an “interrupt” input signal, corresponding to
specific crankshaft position for PTO cylinder. This signal serves
as a reference for the control of ignition timing by the ECU.
Synchronization of the CPS and crankshaft position takes place
during the first two revolutions each time the engine is started.
This sensor must be properly connected at all times. If the sensor
fails or becomes disconnected for any reason, the engine will
quit running.
Crankshaft Position Sensor Test
The crankshaft position sensor is a sealed, non-serviceable
assembly. If fault code diagnosis indicates a problem within this
area, test and correct as follows:
1.
Disconnect main harness connector from ECU.
2.
Connect an ohmmeter between the pin terminals. A
resistance value of 560
Ω
±
10% at room temperature (20
°
C, 68
°
F) should be obtained. If resistance is correct, check
the mounting, air gap, toothed ring gear (damage, runout,
etc.), and flywheel key.
3.
Disconnect speed sensor connector from wiring harness.
(the connector with one heavy black lead) Viewing the
connector with dual aligning rails on top, test resistance
between the terminals. A reading of 560
Ω
±
10% should
again be obtained.
NOTE: If the resistance is incorrect, remove the
screw securing the sensor to the mounting bracket
and replace the sensor. If the resistance in step 2
was incorrect, but the resistance of the sensor alone
was correct, test the main harness circuit between
the sensor connector terminals and the
corresponding pin terminals in the main connector.
Correct any observed problem, reconnect the
sensor, and perform step 2 again.
Crankshaft Position Sensor (CPS)
Replacement
1.
Disconnect sensor harness connector.
2.
Using a 6 mm hex wrench, remove the retaining bolt and
replace the sensor, using a light coating of oil on the o-ring
to aid installation.
3.
Torque the retaining bolt to specification.
Crankshaft Position Sensor:
560
Ω
±
10% (20
°
C, 68
°
F)
Crank Sensor
=
T
CPS Retaining Bolt Torque:
25 in. lbs. (2.8 Nm)
Summary of Contents for Sportsman 800 EFI
Page 4: ...NOTES ...
Page 18: ...NOTES GENERAL INFORMATION 1 14 ...
Page 25: ...2 7 MAINTENANCE 2 LUBRICATION FLUIDS SPORTSMAN Component Locations Sportsman Only Deluxe ...
Page 56: ...2 38 MAINTENANCE Maintenance Schedule Service Date Hours Miles Service Performed Serviced By ...
Page 116: ...NOTES ENGINE 3 60 ...
Page 137: ...4 21 FUEL INJECTION 4 EFI CIRCUIT Power On EFI CIRCUIT Crank Position Sensor ...
Page 138: ...4 22 FUEL INJECTION EFI CIRCUIT Fuel Pump EFI CIRCUIT Throttle Position Sensor ...
Page 140: ...4 24 FUEL INJECTION EFI CIRCUIT Malfunction Indicator Light ...
Page 167: ...5 27 BODY STEERING SUSPENSION 5 X2 CARGO BOX Exploded View ...
Page 170: ...5 30 BODY STEERING SUSPENSION X2 SEAT ASSEMBLY Exploded Views ...
Page 174: ...NOTES BODY STEERING SUSPENSION 5 34 ...
Page 206: ...NOTES CLUTCH SYSTEM 6 32 ...
Page 244: ...7 38 FINAL DRIVE Rear Gearcase Exploded View ...
Page 245: ...TRANSMISSION 8 1 CHAPTER 8 TRANSMISSION 8 SPORTSMAN 8 3 8 18 SPORTSMAN X2 8 19 8 38 ...
Page 246: ...NOTES TRANSMISSION 8 2 ...
Page 248: ...8 4 SPORTSMAN TRANSMISSION TRANSMISSION EXPLODED VIEW Sportsman Transmission ...
Page 265: ...8 21 X2 Touring Transmission 8 242 262 262 262 262 262 ...
Page 266: ...8 22 X2 Touring Transmission Mounting Exploded View x2 x3 x4 x4 x2 x1 x1 x1 ...
Page 312: ...NOTES BRAKES 9 30 ...
Page 322: ...10 10 ELECTRICAL SPEEDOMETER TROUBLESHOOTING Test 1 No All Wheel Drive ...
Page 323: ...10 11 ELECTRICAL 10 TEST 2 No Display TEST 3 No Reverse Speed Limit ...
Page 324: ...10 12 ELECTRICAL TEST 4 No AWD Hub Safety Limiter ...
Page 325: ...10 13 ELECTRICAL 10 TEST 5 Reverse Speed Limiter TEST 6 Speed Sensor ...
Page 326: ...10 14 ELECTRICAL TEST 7 No Fuel Gauge TEST 8 Transmission Switch ...
Page 357: ...10 45 ELECTRICAL 10 BASIC WINCH WIRING PRE WIRED MODELS ...
Page 367: ...10 55 ELECTRICAL 10 Cooling Fan EFI Fuel Pump EFI ...
Page 368: ...10 56 ELECTRICAL Gear Switch EFI Power Circuit EFI ...
Page 369: ...10 57 ELECTRICAL 10 Reverse Override EFI Fan Control EFI ...
Page 370: ...10 58 ELECTRICAL Start Circuit EFI Start Enable EFI ...
Page 373: ...11 3 800 TOURING EFI INTERNATIONAL 11 Exploded View Foot Brake Supply Hand Brake Supply ...
Page 376: ...NOTES 800 TOURING EFI INTERNATIONAL 11 6 ...
Page 382: ...IX 6 Intentional Blank Page ...
Page 383: ...WD 1 WIRE DIAGRAM 2008 SPORTSMAN 800 EFI WIRE DIAGRAM ...
Page 384: ...WD 2 WIRE DIAGRAM ...
Page 385: ...WD 3 WIRE DIAGRAM 2008 SPORTSMAN 700 X2 800 TOURING EFI WIRE DIAGRAM ...
Page 386: ...WD 4 WIRE DIAGRAM ...
Page 387: ...WD 5 WIRE DIAGRAM 2008 SPORTSMAN 800 TOURING EFI INTERNATIONAL WIRE DIAGRAM ...
Page 388: ...WD 6 WIRE DIAGRAM ...