NANO

ENGINE 273 MPFI 265 ENGINE Storage and Operating Conditions Operating Temperature -30°C to +140°C Storage Temperature -40°C to +140°C Max storage time 15 Years. Pin Details Signal Connector ECU Pin No Pin No. Canister Purge Driver 1 15 UBR Main Relay 2 - Pin Configuration 3.11.3 ACTUATORS CANISTERPURGE VALVE Component Information: Type: TEV 5 Location: This is mounted on canister purge line between canister & engine intake manifold. In petrol vapour circuit this valve connects canister purge line to intake manifold, downstream side of integrated throttle body. Working Principle The canister purge valve (CPV) meters the gas flow which is generated during regeneration of the activated carbon filter, utilized for fuel tank ventilation. The CPV is triggered by impulses. Duration and frequency are adjusted by an electronic unit depending on the load of the engine. Stand Alone Diagnosis Refer 3.11.5 Trouble Shooting and Diagnosis. • Use Multimeter. • Solenoid coil resistance = 16 Ohm +/- 2 Ohm @ 20°C. • Measure the resistance across pin 1 and 2. • Operating voltage = 9 to 16 V SystemDiagnosis • Use TATAdiagnostic Tool. On vehicle Removal, Inspection & Refitment Procedure (Refer Fuel System) System Integration Supply voltage: 9 V to 16 V (from main relay) ECUprovides drive signal to this solenoid valve to purge the petrol vapour from canister into the engine (inlet manifold) at appropriate speed and load of engine as decided by ECU. This valve is kept open (to purge) depending upon the duty cycle ratio drive signal from ECU.