NANO

FUEL SYSTEM 20 Wiring details (ECU & Sensor): Stand Alone Diagnosis: (At NTP conditions) By using Multimeter: Output voltage (between pin 1 & 2):  Approx 0.5 VDC at 1 bar G  Approx 3.6 VDC at 200 bar G Use TATA Diagnostic Tool & perform actuator test. REMOVAL OF H.P SENSOR FROM PRESSURE REGULATOR (On vehicle): NOTE  Park the vehicle with brakes ON and duel selector switch is kept in CNG mode.  Manually turn of the tank valve and connect the TML tester tool and start the service “Empty CNG lines”  Crank the engine and run in idle condition until engine stop at its own.  Re crank the engine it should not start (tank pressure should be 0 bar) WARNING : Do not turn OFF Cylinder Valves , in vehicle running in CNG mode. This may wrongly detect the leakage error.  Disconnect. Battery negative cable.  Disconnect Solenoid valve connection.  Disconnect electrical connection of HP sensor  Remove the HP sensor by using 27 metric. Wrench. RE-FITMENT OF H.P SENSOR ON PRESSURE REGULATOR (On vehicle):  Before installing the sensor, always ensure good condition of the “O” ring.  Refit the H.P sensor on pressure regulator.  Tighten the H.P sensor to a torque of 50 + 5 Nm (Note: Apply torque only at the hexagonal area).  Do a leak check after fitment.