1.2L REVOTRON ENGINE 14 Incorrect crank angle signal. Check sensor gap and adjust to 1.0 ± 0.4mm Improper firing order Check ignition system and fuel injector connections. Rectify 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. Exhaust system / Catcon damaged Check and take corrective action. 4. Engine Noise Condition Possible Cause Remedy Engine 'pings' or 'knocks' while accelerating or travelling uphill. Improper grade of fuel Fill fuel tank with a minimum BSIV Fuel Spark plugs excessively worn or gapped improperly. Inspect spark plugs. Replace if worn. Incorrect valve/ignition timing Check timing system components and repair or replace as necessary. Excessively worn camshaft Inspect camshaft lobes and run-out for excessive wear. 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. 'Squeal' or 'chirping' while engine is running. Worn, oil-fouled, or improperly adjusted engine accessory belt. Check engine accessory belt condition and tension. Adjust or replace. Belt tensioner not properly tightened or defective Inspect the belt tensioners. Tighten or replace as necessary. 'Clunking' or 'rapping' noise from bottom end of engine Defective piston wrist pin, rod, or main bearings If noise occurs after taking foot off accelerator pedal, inspect piston wrist pins. If noise is constant inspect rod bearings and main bearings for proper clearance and condition Replace bearings as necessary.
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