3.28
ELECTRONIC FUEL INJECTION
FUEL SYSTEM TROUBLESHOOTING
Fuel Starvation / Lean Mixture
Symptoms: Hard start or no start, bog, backfire, popping
through intake / exhaust, hesitation, detonation, low power,
spark plug erosion, engine runs hot, surging, high idle, idle
speed erratic.
• No fuel in tank
• Restricted tank vent, or routed improperly
• Fuel lines or fuel injectors restricted
• Fuel pump inoperative
• Air leak in system
• Intake air leak (throttle shaft, intake boot, gasket or
grommet)
• Throttle stop screw tampering
• Failed sensor or disconnected wiring
Rich Mixture
Symptoms: Fouls spark plugs, black, sooty exhaust smoke,
rough idle, poor fuel economy, engine runs rough/ misses, poor
performance, bog, engine loads up, backfire.
• Air intake restricted (inspect intake duct)
• Air filter dirty/plugged
• Poor fuel quality (old fuel)
• Fouled spark plug
• TPS setting incorrect
• Injector failure
• Failed sensor or disconnected wiring
• Throttle stop screw tampering
Poor Idle
Symptom: Idle Too High (If greater than 1400 RPM when
engine is warm)
• Throttle stop screw tampering
• Throttle cable sticking, improperly adjusted, routed
incorrectly
• Failed sensor or disconnected wiring
• IAC stuck or inoperative
• Intake air leak
Symptom: Idle Too Low (if less than 1100 RPM when engine
is warm)
• Plugged air filter
• Leaking injector (rich condition)
• Belt dragging
• Throttle stop screw tampering
• Failed sensor or disconnected wiring
Symptom: Erratic Idle
• Throttle cable incorrectly adjusted
• Air Leaks, dirty injector
• TPS damaged or misadjusted
• Tight valves
• Belt dragging
• Dirty air cleaner
• Engine worn
• Spark Plug fouled
• Throttle stop screw tampering
• Failed sensor or disconnected wiring
The correct position of the throttle body
stop screw is established and set at the
factory. DO NOT remove the tamper proof
cap to adjust the throttle body stop screw or
alter its position in any manner. The stop
screw controls the air flow calibration
of the throttle body.
PartShark.com
877-999-5686
Содержание 2009 Sportsman XP 850
Страница 10: ...NOTES GENERAL INFORMATION 1 10 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 44: ...NOTES MAINTENANCE 2 34 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 73: ...3 29 ELECTRONIC FUEL INJECTION 3 EFI SYSTEM BREAK OUT DIAGRAMS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 112: ...5 20 ENGINE Drive Coupler Rear Starter Gear Torque Sequence 14 lb ft 19 Nm P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 148: ...5 56 ENGINE Balance Shaft Timing P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 154: ...NOTES ENGINE 5 62 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 202: ...NOTES CLUTCHING PVT 7 30 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 254: ...9 8 BODY FRAME MAIN FRAME Frame Support Exploded View P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 255: ...9 9 BODY FRAME 9 CHASSIS Body Plastic Removed View P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 256: ...NOTES BODY FRAME 9 10 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 320: ...12 28 ELECTRICAL Instrument Cluster Key ON No Power P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 321: ...12 29 ELECTRICAL 12 Instrument Cluster No High Beam Indicator P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 322: ...12 30 ELECTRICAL Instrument Cluster No Incorrect Fuel Level P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 323: ...12 31 ELECTRICAL 12 Instrument Cluster Circuit P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 327: ...12 35 ELECTRICAL 12 Battery Charging Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 329: ...12 37 ELECTRICAL 12 Constant Power Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 335: ...12 43 ELECTRICAL 12 Engine Start Command Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 338: ...12 46 ELECTRICAL AWD ADC Circuits P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 341: ...12 49 ELECTRICAL 12 Radiator Fan Circuit P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 343: ...12 51 ELECTRICAL 12 Gear Selector Switch Circuit P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 345: ...12 53 ELECTRICAL 12 Ground Speed Sensor Circuit Reverse Override Circuit P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 347: ...WD 3 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL PAGE 1 OF 2 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 348: ...WD 4 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL PAGE 2 OF 2 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 349: ...WD 6 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL AWD ADC P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 350: ...WD 8 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL BATTERY CHARGING P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 351: ...WD 10 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL BATTERY PLUS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 352: ...WD 12 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL BRAKE LAMPS START P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 353: ...WD 14 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL CHASSIS POWER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 354: ...WD 16 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL COOLING FAN P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 355: ...WD 18 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL ECM WAKE UP P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 356: ...WD 20 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL EFI P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 357: ...WD 22 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL ENGINE CRANK P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 358: ...WD 24 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL EPS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 359: ...WD 26 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL FUEL PUMP LEVEL P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 360: ...WD 28 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL GEAR SENSOR P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 361: ...WD 30 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL GROUND SPEED SENSOR P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 362: ...WD 32 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL KEY ON POWER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 363: ...WD 34 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL LIGHTS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 364: ...WD 35 WIRE DIAGRAM 2009 SPORTSMAN XP 850 INTL HAZARD LIGHTS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 365: ...WD 1 WIRE DIAGRAM 2009 SPORTSMAN XP 850 PAGE 1 OF 2 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 366: ...WD 2 WIRE DIAGRAM 2009 SPORTSMAN XP 850 PAGE 2 OF 2 P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 367: ...WD 5 WIRE DIAGRAM 2009 SPORTSMAN XP 850 AWD ADC P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 368: ...WD 7 WIRE DIAGRAM 2009 SPORTSMAN XP 850 BATTERY CHARGING P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 369: ...WD 9 WIRE DIAGRAM 2009 SPORTSMAN XP 850 BATTERY PLUS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 370: ...WD 11 WIRE DIAGRAM 2009 SPORTSMAN XP 850 BRAKE LAMPS START P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 371: ...WD 13 WIRE DIAGRAM 2009 SPORTSMAN XP 850 CHASSIS POWER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 372: ...WD 15 WIRE DIAGRAM 2009 SPORTSMAN XP 850 COOLING FAN P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 373: ...WD 17 WIRE DIAGRAM 2009 SPORTSMAN XP 850 ECM WAKE UP P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 374: ...WD 19 WIRE DIAGRAM 2009 SPORTSMAN XP 850 EFI P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 375: ...WD 21 WIRE DIAGRAM 2009 SPORTSMAN XP 850 ENGINE CRANK P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 376: ...WD 23 WIRE DIAGRAM 2009 SPORTSMAN XP 850 EPS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 377: ...WD 25 WIRE DIAGRAM 2009 SPORTSMAN XP 850 FUEL PUMP LEVEL P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 378: ...WD 27 WIRE DIAGRAM 2009 SPORTSMAN XP 850 GEAR SENSOR P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 379: ...WD 29 WIRE DIAGRAM 2009 SPORTSMAN XP 850 GROUND SPEED SENSOR P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 380: ...WD 31 WIRE DIAGRAM 2009 SPORTSMAN XP 850 KEY ON POWER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Страница 381: ...WD 33 WIRE DIAGRAM 2009 SPORTSMAN XP 850 HEADLAMPS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...