NGK ID0139 Ignition Knock (Detonation) Sensor

The NGK ID0139 Ignition Knock (Detonation) Sensor, also called a knock sensor or detonation sensor, is sold under the NGK/NTK name (stock number 72916). It is a direct-replacement sensor built to the fit of an Original Equipment part.

Key Features:

• Monitors vibrations caused by engine knock or detonation, so the engine computer can adjust ignition timing and help prevent detonation
• Two-terminal design
• Direct replacement with OE-style fit
• NTK technical sensor line, designed and tested to OE quality standards
• Listed measuring range: 0.5 - 5 g
• Interchanges with Standard Motor Products KS79 and Nissan 2206056E11

A failing knock sensor can cause the check engine light to come on, engine hesitation, poor fuel economy, or a failed emissions test. Replacing it restores the engine computer's ability to control timing accurately.