Mitsubishi Mirage G4 acceleration bucking issue when going uphill on Mitsubishi Mirage G4

Some Mitsubishi Mirage G4 owners report experiencing acceleration bucking issues, particularly when driving uphill. Common causes for this jerking sensation include misfires, which can significantly affect performance. Additionally, slow acceleration may stem from various problems such as clogged air filters, dirty mass air flow sensors, clogged fuel filters, fuel pump malfunctions, faulty oxygen sensors, dirty throttle bodies, worn spark plugs, and clogged catalytic converters. These issues might trigger a diagnostic trouble code if the check engine light is illuminated. Some drivers have noted that the vehicle's acceleration is particularly poor on inclines, prompting them to turn off the AC to maximize power. Regular maintenance, such as using Techron every 5,000 miles to keep fuel injectors clean, is recommended. If acceleration issues persist, it is advisable for owners to consult a professional mechanic for a comprehensive inspection and diagnosis.