{"product_id":"standard-ignition-mas0390-mass-air-flow-sensor","title":"Standard Ignition MAS0390 Mass Air Flow Sensor","description":"\u003ch2\u003eOverview of Standard Ignition Mass Air Flow Sensor MAS0390\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition MAS0390 Mass Air Flow Sensor is designed for precise air measurement in select BMW models. This sensor ensures accurate air intake readings, supporting optimal engine performance and emission control.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAttachment Method: Snap fit for secure installation\u003c\/li\u003e\n\u003cli\u003eConnector Gender: Female with one round connector\u003c\/li\u003e\n\u003cli\u003eTerminal Type: Four male bullet terminals\u003c\/li\u003e\n\u003cli\u003eNumber of Bolt Holes: Four for stable mounting\u003c\/li\u003e\n\u003cli\u003eMaterial: Durable plastic housing (housing not included)\u003c\/li\u003e\n\u003cli\u003eComplete assembly ready for installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThe MAS0390 Mass Air Flow Sensor by Standard Ignition is engineered to meet the specifications of BMW vehicles including the 325i, 325is, 525i, 525iT, 530i, and M3 models. Featuring a snap fit attachment method, this sensor allows for straightforward installation without the need for additional hardware. The sensor includes a single female round connector and four male bullet terminals, ensuring reliable electrical connections. With four bolt holes, the sensor mounts securely to maintain consistent performance. Constructed from high-quality plastic, the sensor assembly is designed to withstand typical engine bay conditions. Note that the housing is not included, but the sensor comes as a complete assembly ready to replace your existing unit.\u003c\/p\u003e\u003ch2\u003eCompatible BMW Models and Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eBMW 325i and 325is\u003c\/li\u003e\n\u003cli\u003eBMW 525i and 525iT\u003c\/li\u003e\n\u003cli\u003eBMW 530i\u003c\/li\u003e\n\u003cli\u003eBMW M3\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThis mass air flow sensor is essential for accurate measurement of the air entering the engine, which directly affects fuel injection and engine management systems.\u003c\/p\u003e\u003ch2\u003eCommon Issues Addressed by MAS0390 Sensor\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eErratic engine idling or stalling\u003c\/li\u003e\n\u003cli\u003eReduced fuel efficiency and increased emissions\u003c\/li\u003e\n\u003cli\u003eCheck engine light triggered by airflow sensor faults\u003c\/li\u003e\n\u003cli\u003ePoor acceleration or hesitation during throttle response\u003c\/li\u003e\n\u003cli\u003eEngine performance inconsistencies related to air intake measurement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the MAS0390 sensor requires careful handling of the snap fit attachment to avoid damage. Ensure the female round connector is securely connected to the vehicle wiring harness. Verify that all four bolt holes align properly for stable mounting. It is recommended to inspect the surrounding air intake system for leaks or damage before installation. Proper installation will help maintain accurate sensor readings and engine performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eStandard Ignition provides this mass air flow sensor with a focus on OEM-level quality and fitment. The MAS0390 part number corresponds to a complete assembly designed to meet or exceed factory specifications. While specific warranty details may vary, Standard Ignition products typically include a limited warranty against defects in materials and workmanship to ensure reliability and customer confidence.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":44691106365621,"sku":"FBHK-MAS0390","price":237.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_MAS0390_Fro.jpg?v=1775081267","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-mas0390-mass-air-flow-sensor","provider":"PartCatalog","version":"1.0","type":"link"}