玛莎拉蒂GranTurismo/总裁点火线圈 78502005 高压包原装替换

On Maserati GranTurismo and Quattroporte equipped with 4.2L or 4.7L V8 engines, the ignition coil (OEM 78502005) is mounted above the cylinder head and converts low-voltage electricity to high-voltage to drive the spark plug for ignition of the air-fuel mixture. Replacement difficulty is medium; workshop time about 1.5-2 hours, needing to remove the intake manifold and ignition coil cover. Typical symptoms of coil failure include idle roughness, weak acceleration, engine warning light, or noticeably higher fuel consumption.