1.2L REVOTRON ENGINE 12 3. Poor Engine Performance Condition Possible Cause Remedy Maximum RPM -low Insufficient battery voltage/charge - 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. Exhaust system / Catcon damaged Check and take corrective action. Poor acceleration or low power Insufficient battery voltage/charge - test battery and charging system Clean and tighten battery connections Battery or charging system component faulty. Replace as necessary. Obstructed air filter or air inlet Clean or replace air filter or inlet.
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