test battery and charging system. Clean and tighten battery • connections Jump start engine. • Battery or charging system • component faulty. Replace as necessary. Obstructed air filter or air inlet Clean or replace air filter or inlet. • Improper grade or contaminated fuel Rush fuel system with fresh, clean, • fuel of the correct type. Replace fuel filter. Faulty spark plugs, wires, or ignition coil Check ignition system components • for proper operation. Replace as necessary. Malfunctioning engine management system component Perform engine management system • diagnostic test as described in this section of the manual. Fuel filter if clogged. Replace the fuel filter. • fuel lines are pinched or clogged Correct the routine to avoid pinch, or • allow shop air to clear the clog in the fuel lines. Improper Electrical supply at pump connector If electrical supply is in proper check • electrical system. In adequate fuel pump pressure IF fuel pump does not built pressure • then replace. Incorrect crank angle signal Check sensor gap and adjust to 1.0 • ± 0.4mm Clogged or faulty fuel injector(s) Check fuel injector operation. • Replace as necessary. Improper firing order Check ignition system and fuel • injector connections. Rectify as necessary. 1.2L REVOTRON CNG PHASE-2 ENGINE 13
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