TATA PUNCH SERVICE MANUAL

1.2L REVOTRON ENGINE B AN OVERVIEW............................................................................................................... 146 C ELECTRONIC CONTROL UNIT ..................................................................................... 147 D SENSORS… ................................................................................................................... 152 I T-MAP SENSOR....................................................................................................... 153 II LAMBDA SENSOR ................................................................................................... 154 III CAMSHAFT POSITION SENSOR............................................................................. 156 IV KNOCK SENSOR ..................................................................................................... 157 V CRANKSHAFT POSITION SENSOR ........................................................................ 158 VI COOLANT TEMPERATURE SENSOR ..................................................................... 159 E ACTUATORS.. ................................................................................................................ 161 I IGNITION COIL ......................................................................................................... 162 II PURGE CONTROL VALVE....................................................................................... 163 III SOLENOID VALVE (OCV) ........................................................................................ 164 IV FUEL INJECTOR ...................................................................................................... 165 V ELECTRONIC THROTTLE BODY ............................................................................ 166 F SWITCH.......................................................................................................................... 168 I OIL PRESSURE SWITCH......................................................................................... 168 II THROTTLE PEDAL SENSOR................................................................................... 169 III CLUTCH SWITCH..................................................................................................... 170 IV REVERSE LAMP SWITCH ....................................................................................... 170 V BRAKE SWITCH....................................................................................................... 171 VI VEHICLW SPEED SENSOR..................................................................................... 172

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