{"product_id":"delphi-es20004-oxygen-sensor","title":"Delphi ES20004 Oxygen Sensor - Rear","description":"\u003ch2\u003eDelphi ES20004 Heated Oxygen Sensor Overview\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20004 is a heated oxygen sensor designed for precise emission control in select Saturn vehicles. Engineered to meet OEM specifications, this sensor ensures accurate air-fuel mixture readings for optimal engine performance and reduced emissions.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHeated sensor type for faster warm-up and improved efficiency\u003c\/li\u003e\n\u003cli\u003eFour-wire design for reliable signal transmission\u003c\/li\u003e\n\u003cli\u003eSquare connector shape for secure and proper fitment\u003c\/li\u003e\n\u003cli\u003eThread size of 18 x 1.5 mm compatible with specified Saturn models\u003c\/li\u003e\n\u003cli\u003eOverall length of 725.0 mm for correct installation depth\u003c\/li\u003e\n\u003cli\u003ePositioned for rear installation in the exhaust system\u003c\/li\u003e\n\u003cli\u003eIncludes oxygen sensor and instruction sheet for installation guidance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Compatibility\u003c\/h2\u003e\u003cp\u003eThe Delphi ES20004 oxygen sensor features a heated element that allows it to reach operating temperature quickly, improving sensor response time and reducing emissions during cold starts. Its four-wire configuration supports both the sensor signal and heater circuit, ensuring consistent performance. The square connector shape and 18 x 1.5 mm thread size are designed specifically for rear exhaust placement on Saturn LS, LS1, and LW1 models. With an overall length of 725.0 mm, this sensor fits precisely in the designated rear position, maintaining proper exhaust flow and sensor accuracy.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Resolution\u003c\/h2\u003e\u003cp\u003eThis oxygen sensor is compatible with the following Saturn vehicles:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSaturn LS\u003c\/li\u003e\n\u003cli\u003eSaturn LS1\u003c\/li\u003e\n\u003cli\u003eSaturn LW1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCommon issues addressed by replacing the Delphi ES20004 sensor include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light triggered by faulty oxygen sensor readings\u003c\/li\u003e\n\u003cli\u003ePoor fuel economy due to incorrect air-fuel mixture\u003c\/li\u003e\n\u003cli\u003eIncreased emissions failing regulatory standards\u003c\/li\u003e\n\u003cli\u003eEngine hesitation or rough idling caused by sensor malfunction\u003c\/li\u003e\n\u003cli\u003eFailed emissions tests related to exhaust sensor performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Delphi ES20004 oxygen sensor, ensure the vehicle is cool to avoid burns. Use the included instruction sheet for proper wiring and torque specifications. Verify the square connector aligns correctly to prevent connection issues. It is recommended to apply anti-seize compound on the threads to facilitate future removal. Confirm the sensor is installed in the rear exhaust position as specified for Saturn LS, LS1, and LW1 models.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eDelphi manufactures the ES20004 oxygen sensor to meet strict quality standards, ensuring durability and reliable performance. This sensor undergoes rigorous testing to comply with emission control requirements. Warranty coverage details should be confirmed at the point of purchase, as Delphi typically offers limited warranties on emission control components.\u003c\/p\u003e","brand":"Delphi","offers":[{"title":"Default Title","offer_id":43388517646517,"sku":"BBMX-ES20004","price":102.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/DE_ES20004_Ang.jpg?v=1774712018","url":"https:\/\/www.partcatalog.com\/products\/delphi-es20004-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}