HOP Crankshaft Position Sensor 33220-78A00, specifically designed for Suzuki Chang'an 474 Engine

Suzuki Chang’an 474 engine-specific HOP crank angle position sensor (OEM: 33220-78A00); direct replacement with no rewiring required. Monitors crank speed and position, sending signals to ECU to control ignition and fuel injection; fits Swift, Chang’an Star, CM8 and other models. After installation, starting difficulty, weak acceleration, and engine vibration can be alleviated, especially when cold. If check engine light on, rough idle, or stalling occurs, sensor aging indicated.