{"product_id":"standard-ignition-mas0402-mass-air-flow-sensor","title":"Standard Ignition MAS0402 Mass Air Flow Sensor","description":"\u003ch2\u003eReliable Mass Air Flow Sensor for Audi and Volkswagen Vehicles\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition MAS0402 Mass Air Flow Sensor is designed to provide accurate airflow measurement for select Audi and Volkswagen models. This sensor helps maintain optimal engine performance and emissions control by delivering precise data to the engine control unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with Audi A4, A4 Quattro, A5, A5 Quattro, A6, A6 Quattro, allroad, and Volkswagen Eos, Jetta, Q3, Q3 Quattro, Q5\u003c\/li\u003e\n\u003cli\u003ePart number MAS0402 ensures exact replacement fit\u003c\/li\u003e\n\u003cli\u003eMeasures intake air volume for efficient fuel management\u003c\/li\u003e\n\u003cli\u003eSupports emission control system functionality\u003c\/li\u003e\n\u003cli\u003eDirect replacement for factory-installed mass air flow sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Functionality\u003c\/h2\u003e\u003cp\u003eThe Standard Ignition MAS0402 Mass Air Flow Sensor is engineered to accurately measure the amount of air entering the engine intake system. This data is critical for the engine control module to calculate the correct fuel injection volume, ensuring efficient combustion and reduced emissions. Compatible with a range of Audi and Volkswagen models, including the A4, A5, A6 series, and Q3 and Q5 SUVs, this sensor meets OEM specifications for fit and function. The part number MAS0402 identifies this sensor as a direct replacement, simplifying maintenance and repair.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRestores proper air-fuel mixture for improved engine performance\u003c\/li\u003e\n\u003cli\u003eResolves rough idling and engine hesitation issues\u003c\/li\u003e\n\u003cli\u003eHelps eliminate check engine light triggers related to airflow sensor faults\u003c\/li\u003e\n\u003cli\u003eImproves fuel economy by providing accurate airflow data\u003c\/li\u003e\n\u003cli\u003eSupports emission system compliance by maintaining sensor accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the MAS0402 Mass Air Flow Sensor requires basic automotive tools and knowledge. Before installation, disconnect the vehicle battery to prevent electrical shorts. Carefully remove the old sensor from the intake system, avoiding damage to the wiring harness. Install the new sensor in the same orientation and secure it firmly. After installation, clear any diagnostic trouble codes and verify proper sensor operation through a diagnostic scan tool.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eStandard Ignition manufactures the MAS0402 Mass Air Flow Sensor to meet or exceed OEM standards. Each sensor undergoes rigorous testing to ensure durability and accurate performance. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in materials and workmanship, providing confidence in product reliability.\u003c\/p\u003e","brand":"Standard Ignition","offers":[{"title":"Default Title","offer_id":44691109511349,"sku":"FBHK-MAS0402","price":126.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SI_MAS0402_Fro.jpg?v=1775081270","url":"https:\/\/www.partcatalog.com\/products\/standard-ignition-mas0402-mass-air-flow-sensor","provider":"PartCatalog","version":"1.0","type":"link"}