5. Install the filter in the car and check the leakages on the inlet and outlet plugs and on the junction between the lower and the cap filter using Snoop solution. 6. During installation/replacement of filter on vehicle, ensure that marking on low pressure hoses (inlet hose to filter and outlet hose from filter) matches with arrow marking provided on low pressure filter cap. BI-FUEL AUTO SWITCH STRATEGY IX. During vehicle start/ cranking 1. The vehicle starts by default in CNG except when there is a manual intervention by fuel mode switch or if the engine coolant temperature is below 20oC. 2. If the engine coolant temperature is below 20oC, the vehicle will start in gasoline mode and then switch to CNG mode when the temperature increases above 20oC. 3. Vehicle cannot be started or run in CNG mode when the coolant temperature is below 20oC except when the Gasoline fuel level is below 9% in the tank. When the vehicle is running Conditions for auto fuel switchover from CNG to gasoline 1. If the CNG tank pressure is below 10bar. The vehicle will switch back to CNG only when the pressure is above 25bar after refill. 2. If the CNG rail pressure is lower than 3.5 bar or higher than 5.5 bar. 3. In case of fault in the CNG system (CNG injectors, Rail pressure sensor, Misfire). Conditions for auto fuel switchover from gasoline to CNG 1. If the gasoline fuel level is lower than 9%. The vehicle will switch back to gasoline only when the fuel level is above 15% after refill. 2. If there is fault in the gasoline system (Gasoline injectors, Misfire). Intermediate switchover strategy 1. When the vehicle runs in only CNG mode for 1000kms, an automatic switchover is activated to gasoline mode for around 45 seconds after which the vehicle will continue to run in CNG mode. 2. When the vehicle runs in only Gasoline mode for 1000kms, an automatic switchover is activated to CNG mode for around 30 seconds after which the vehicle will continue to run in gasoline mode. The above strategy is only enabled when the coolant temperature is above 60oC and when the fuel level is sufficient in the other fuel mode and there are no faults in other fuel system (CNG or gasoline). 1.2L REVOTRON CNG PHASE-2 ENGINE 66
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