{"product_id":"standard-ignition-as439-manifold-absolute-pressure-sensor","title":"Standard Ignition AS439 Manifold Absolute Pressure Sensor","description":"\u003ch2\u003eReliable Manifold Absolute Pressure Sensor for Audi Vehicles\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition AS439 Manifold Absolute Pressure Sensor is designed to provide accurate pressure readings for optimal engine performance. Compatible with various Audi models, this sensor helps maintain efficient fuel management and emission control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Audi A4, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, allroad, Q5, and TT Quattro\u003c\/li\u003e\n\u003cli\u003eMeasures manifold absolute pressure to support engine control systems\u003c\/li\u003e\n\u003cli\u003eDirect replacement part number AS439 for easy identification\u003c\/li\u003e\n\u003cli\u003eEnsures precise data for fuel injection and ignition timing adjustments\u003c\/li\u003e\n\u003cli\u003eDurable construction for consistent performance under varying conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Functionality\u003c\/h2\u003e\u003cp\u003eThe AS439 Manifold Absolute Pressure Sensor from Standard Ignition is engineered to monitor the pressure inside the intake manifold of compatible Audi vehicles. By accurately measuring this pressure, the sensor provides critical input to the engine control unit (ECU), which adjusts fuel delivery and ignition timing accordingly. This process helps maintain engine efficiency, reduce emissions, and improve drivability. The sensor is designed to meet OEM specifications, ensuring reliable operation and fitment across multiple Audi models including the A4, A5, A6 series, allroad, Q5, and TT Quattro.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHelps resolve rough idling or engine stalling issues\u003c\/li\u003e\n\u003cli\u003eAddresses poor fuel economy caused by incorrect pressure readings\u003c\/li\u003e\n\u003cli\u003eReduces engine hesitation or lack of power during acceleration\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to manifold pressure faults\u003c\/li\u003e\n\u003cli\u003eSupports emission control compliance by providing accurate sensor data\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Standard Ignition AS439 sensor requires basic mechanical skills and standard automotive tools. Before installation, ensure the engine is cool and disconnect the battery to prevent electrical shorts. Remove the old sensor carefully to avoid damage to the intake manifold or wiring harness. When installing the new sensor, verify the connector is securely attached and free of corrosion. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper sensor operation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eStandard Ignition manufactures the AS439 sensor to meet or exceed OEM quality standards. Each unit undergoes rigorous testing to ensure durability and accurate performance. While specific warranty terms may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship. This provides assurance of the sensor’s reliability when installed in compatible Audi models.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":44503339368629,"sku":"FBHK-AS439","price":28.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_AS439_Fro.jpg?v=1775022012","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-as439-manifold-absolute-pressure-sensor","provider":"PartCatalog","version":"1.0","type":"link"}