B. ENGINE ASSEMBLY........................................................................................................................176 ASSEMBLY OF CYLINDER BLOCK SUB-ASSEMBLIES.........................................................176 I. FITMENT OF PISTON AND CONNECTING ROD SUB-ASSEMBLIES ....................................181 II. ASSEMBLY OF CYLINDER HEAD SUB-ASSEMBLIES...........................................................184 III. ASSEMBLY OF CYLINDER HEAD...........................................................................................185 IV. V. ASSEMBLY OF ENGINE TIMING CHAIN..................................................................................187 VI. ASSEMBLY OF ACCESSORIES DRIVING BELT.....................................................................192 ASSEMBLY OF SENSORS AND PERIPHERALS ...................................................................193 VII. ASSEMBLY OF OIL SUMP......................................................................................................194 VIII. ASSEMBLY OF EXHAUST MANIFOLD....................................................................................195 IX. X. ASSEMBLY OF INTAKE MANIFOLD ........................................................................................197 9. ENGINE MANAGEMENT SYSTEM.......................................................................................................199 A. ABBREVIATIONS .............................................................................................................................199 B. AN OVERVIEW ...............................................................................................................................199 C. ELECTRONIC CONTROL UNIT (ECU)............................................................................................201 D. SENSORS ........................................................................................................................................207 MANIFOLD AIR PRESSURE SENSOR AND TEMPERATURE SENSOR (T-MAP) :................208 I. LAMBDA SENSOR ...................................................................................................................209 II. CAMSHAFT POSITION SENSOR ............................................................................................213 III. KNOCK SENSOR .....................................................................................................................214 IV. V. CRANKSHAFT POSITION SENSOR .......................................................................................215 VI. COOLANT TEMPERATURE SENSOR ....................................................................................217 E. ACTUATORS ....................................................................................................................................218 IGNITION COIL .........................................................................................................................218 I. SOLENOID VALVE (OIL CONTROL VALVE).............................................................................220 II. FUEL INJECTORS ....................................................................................................................221 III. PURGE CONTROL VALVE ......................................................................................................222 IV. V. ELECTRONIC THROTTLE BODY ............................................................................................223 F. SWITCH ...........................................................................................................................................225 OIL PRESSURE SWITCH .........................................................................................................225 I. THROTTLE PEDAL SENSOR ..................................................................................................226 II. CLUTCH SWITCH ....................................................................................................................227 III. BRAKE SWITCH ......................................................................................................................228 IV. V. WHEEL SPEED SENSOR.........................................................................................................229 1.2L REVOTRON CNG PHASE-2 ENGINE
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