{"product_id":"bosch-0261231004-ignition-knock-detonation-sensor","title":"Bosch 0261231004 Ignition Knock (Detonation) Sensor","description":"\u003ch2\u003eBosch Knock Sensor for Passat\u003c\/h2\u003e\u003cp\u003eThis Bosch ignition knock sensor is built for 1993-1997 Volkswagen Passat applications and is identified by part number 0261231004. It is an OE-quality replacement for the engine management system, helping the ECU detect detonation and adjust timing for smoother operation and better fuel use.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBosch OE-quality ignition knock sensor for engine protection\u003c\/li\u003e\n\u003cli\u003eFits 1993-1997 Volkswagen Passat, N\/A\u003c\/li\u003e\n\u003cli\u003eSupports detonation detection for timing correction\u003c\/li\u003e\n\u003cli\u003eHelps reduce fuel consumption when the engine is operating with proper knock control\u003c\/li\u003e\n\u003cli\u003ePart number 0261231004 for accurate ordering and lookup\u003c\/li\u003e\n\u003cli\u003eCross-reference: 034905377A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003eBosch ignition knock sensors are engineered to provide the engine control unit with the signal it needs to identify abnormal combustion. On the Volkswagen Passat, that feedback helps the system manage ignition timing and protect the engine under load, during acceleration, or when fuel quality changes. The Bosch 0261231004 is a direct-fit style replacement for the listed Passat model years and is suited for drivers addressing a failed knock sensor, a check engine light, or drivability concerns tied to detonation control.\u003c\/p\u003e\u003cp\u003eThe Bosch Ignition Knock (Detonation) Sensor (New) line focuses on OE-style sensor performance for modern engine management systems. For buyers searching Bosch 0261231004, Volkswagen Passat knock sensor, or 1993-1997 Passat ignition knock sensor, this part provides a straightforward replacement option with the correct application coverage.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part May Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eKnock sensor fault codes\u003c\/li\u003e\n\u003cli\u003eCheck engine light related to detonation sensing\u003c\/li\u003e\n\u003cli\u003eEngine pinging or spark knock under load\u003c\/li\u003e\n\u003cli\u003eReduced timing control from a failed sensor signal\u003c\/li\u003e\n\u003cli\u003ePoor fuel economy caused by incorrect knock feedback\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the connector style and sensor location against the original part before installation. Clean the mounting surface, follow the vehicle service procedure for torque and routing, and clear diagnostic trouble codes after replacement. Because this sensor is part of the engine management system, confirm the repair with a scan tool and road test the vehicle after installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eBosch supplies OE-quality engine management components, and this knock sensor is built to meet the application requirements of the listed Volkswagen Passat models. Part number 0261231004 is the reference to use when matching the correct sensor for 1993-1997 Volkswagen Passat coverage.\u003c\/p\u003e","brand":"Bosch","offers":[{"title":"Default Title","offer_id":44531950420149,"sku":"BBHK-0261231004","price":36.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/BS_0261231004_Fro.jpg?v=1775060774","url":"https:\/\/www.partcatalog.com\/products\/bosch-0261231004-ignition-knock-detonation-sensor","provider":"PartCatalog","version":"1.0","type":"link"}