B. ENGINE ASSEMBLY........................................................................................................................174 ASSEMBLY OF CYLINDER BLOCK SUB-ASSEMBLIES.........................................................174 I. FITMENT OF PISTON AND CONNECTING ROD SUB-ASSEMBLIES ....................................179 II. ASSEMBLY OF CYLINDER HEAD SUB-ASSEMBLIES...........................................................182 III. ASSEMBLY OF CYLINDER HEAD...........................................................................................183 IV. V. ASSEMBLY OF ENGINE TIMING CHAIN..................................................................................185 VI. ASSEMBLY OF ACCESSORIES DRIVING BELT.....................................................................190 ASSEMBLY OF SENSORS AND PERIPHERALS ...................................................................191 VII. ASSEMBLY OF OIL SUMP......................................................................................................192 VIII. ASSEMBLY OF EXHAUST MANIFOLD....................................................................................193 IX. X. ASSEMBLY OF INTAKE MANIFOLD ........................................................................................195 9. ENGINE MANAGEMENT SYSTEM.......................................................................................................197 A. ABBREVIATIONS .............................................................................................................................197 B. AN OVERVIEW ...............................................................................................................................197 C. ELECTRONIC CONTROL UNIT (ECU)............................................................................................199 D. SENSORS ........................................................................................................................................205 MANIFOLD AIR PRESSURE SENSOR AND TEMPERATURE SENSOR (T-MAP) :................206 I. LAMBDA SENSOR ...................................................................................................................207 II. CAMSHAFT POSITION SENSOR ............................................................................................211 III. KNOCK SENSOR .....................................................................................................................212 IV. V. CRANKSHAFT POSITION SENSOR .......................................................................................213 VI. COOLANT TEMPERATURE SENSOR ....................................................................................215 E. ACTUATORS ....................................................................................................................................216 IGNITION COIL .........................................................................................................................216 I. SOLENOID VALVE (OIL CONTROL VALVE).............................................................................218 II. FUEL INJECTORS ....................................................................................................................219 III. PURGE CONTROL VALVE ......................................................................................................220 IV. V. ELECTRONIC THROTTLE BODY ............................................................................................221 F. SWITCH ...........................................................................................................................................223 OIL PRESSURE SWITCH .........................................................................................................223 I. THROTTLE PEDAL SENSOR ..................................................................................................224 II. CLUTCH SWITCH ....................................................................................................................225 III. BRAKE SWITCH ......................................................................................................................226 IV. V. WHEEL SPEED SENSOR.........................................................................................................227 1.2L REVOTRON CNG PHASE-2 ENGINE
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