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Ems (engine management system) …………………………………………………… 305
Typical components of EMS………………………………………………………………305
Layout of EMS components………………………………………………………………305
COMPONENTS OF EMS
Electronic control unit …………………………………………………………………… 306
Multec 3.5 injectors ……………………………………………………………………… 307
Throttle body assembly(with stepper motor) …………………………………………311
Engine coolant temperature sensor ……………………………………………………313
Intake air pressure and temperature sensor …………………………………………313
Oxygen sensor ………………………………………………………………………… 314
Ignition coil……………………………………………………………………………… 314
Fuel pump module…………………………………………………………………………318
EMS FAULT DIAGNOSIS
EME fault diagnosis ………………………………………………………………………324
Fault code list………………………………………………………………………………324
CHAPTER 8
TROUBLESHOOTING
STARTING FAILURE/HARD STARTING………………………………………………… 326
Fuel system ………………………………………………………………………………326
Electrical system ………………………………………………………………………… 326
Compression system …………………………………………………………………… 327
POOR IDLE SPEED PERFORMANCE ………………………………………………… 327
Poor idle speed performance…………………………………………………………… 327
POOR MEDIUM AND HIGH-SPEED PERFORMANCE ……………………………… 328
Poor medium and high-speed performance………………………………………… 328
FAULTY GEAR SHIFTING………………………………………………………………… 328
Shift lever does not move ……………………………………………………………… 328
Jumps out of gear……………………………………………………………………… 328
ENGING OVERHEATING…………………………………………………………………… 329
Overheating……………………………………………………………………………… 329
FAULTY BRAKE…………………………………………………………………………… 329
Poor braking effect……………………………………………………………………… 329
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SHOCK ABSORBER MALFUNCTION………………………………………………… 330
Loss of damping function……………………………………………………………… 330
UNSTABLE HANDLING…………………………………………………………………… 330
Unstable handling……………………………………………………………………… 330
LIGHTING SYSTEM………………………………………………………………………… 330
Head light is out of work………………………………………………………………… 330
Bulb burnt out…………………………………………………………………………… 331
Error display of meter…………………………………………………………………… 331
CHAPTER 9
WIRING DIAGRAM
WIRING DIAGRAM…………………………………………………………………… 332
WIRING EFI DIAGRAM…………………………………………………………………… 333
IGNITION SYSTEM CIRCUIT DIAGRAM…………………………………………………334
ELECTRIC STARTING SYSTEM CIRCUIT DIAGRAM…………………………………335
LIGHTING SYSTEM CIRCUIT DIAGRAM………………………………………………336
SIGNALING SYSTEM CIRCUIT DIAGRAM………………………………………………337
2WD/4WD SELECTION SYSTEM CIRCUIT DIAGRAM…………………………………338