{"product_id":"ign-ngk-ntk-knock-sensor-id0234-72904","title":"Ign NGK\/NTK Knock Sensor ID0234 (72904)","description":"\u003cp\u003eThe knock sensor ignition determines if engine knock is present (caused by detonation).\u003c\/p\u003e\u003cp\u003eA varying voltage signal is sent to the ECM by a piezoelectric crystal, which generates based upon engine vibration intensity.\u003c\/p\u003e\u003cp\u003eThe signal is used to retard ignition timing, which prevents engine damage caused by pre-ignition.\u003c\/p\u003e\u003cp\u003eLocated on the engine block, common causes for replacement include illumination of the check engine lamp, engine hesitation, poor fuel economy, and failed emissions tests.\u003c\/p\u003e","brand":"NGK Spark Plugs","offers":[{"title":"Default Title","offer_id":51737723568410,"sku":"NGK72904","price":57.79,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0975\/8942\/8506\/files\/61OUqBevb_L.jpg?v=1771838292","url":"https:\/\/trybeepbeep.com\/products\/ign-ngk-ntk-knock-sensor-id0234-72904","provider":"TryBeepbeep","version":"1.0","type":"link"}