ACDelco GM Original Equipment 213-3521 Ignition Knock (Detonation) Sensor electronics_update_2023 360° Rotation

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ACDelco GM Original Equipment 213-3521 Ignition Knock (Detonation) Sensor electronics_update_2023 360° RotationACDelco GM Original Equipment 213 3521 Ignition Knock (Detonation) Sensor ACDelco GM Original Equipment Ignition Knock (Detonation) Sensors monitor the engine for pinging or spark knock, and are GM recommended replacements for your vehicle's original components. These sensors create a voltage signal based on the vibrations caused by erratic air fuel mixture combustion; the engine control module uses these signals to adjust the ignition timing and air