TIAGO

1.2L REVOTRON ENGINE 10 2. Engine Idle Problems Condition Possible Cause Remedy Engine Starts but does not idle Faulty ETC unit.  Perform Diagnosis test. Replace as necessary. 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 manifold absolute pressure (MAP) sensor signal input.  Check for leakage at sensor.  Perform diagnostic test. Engine idles erratically Disconnected or leaking vacuum line or vacuum leak at inlet manifold.  Inspect all vacuum lines and connections. Repair or replace as necessary. Faulty ETC unit.  Perform diagnostic test. Replace as necessary. Incorrect valve / ignition timing.  Check timing system components and repair or replace as necessary. 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. 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.