Sensor Stand alone Diagnosis : • Connector details : Injector 1 1. ECU pin M2H2 : signal 2. supply voltage - 12V Injector 2 1. ECU pin M2G3 : signal 2. supply voltage - 12V Injector 3 1. ECU pin M2G2 : signal 2. supply voltage - 12V Injector 4 1. ECU pin M2H3 : signal 2. supply voltage - 12V Use multimeter to check coil resistance which should be 12.25ohms ± 0.5ohms PURGE CONTROL VALVE IV. Component Details : • Purge Valve is a solenoid valve (Variable position), its opening is controlled by controlling the field current of the magnetic coil. Component Location • Preliminary Checks : • 1. Loose or damaged connections between actuator and EMS ECU. 2. Check for back out of pins at both actuator and EMS ECU connector. 3. Check for damage of connectors at both actuator and EMS ECU end. 4. Check whether the actuator is stuck open/ closed - Mechanical failure. 1.2L REVOTRON CNG PHASE-2 ENGINE 222
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