{"product_id":"vw-audi-3-0-tdi-nox-sensor-059907807ab-sns452","title":"NOx Sensor for Volkswagen \/ Audi 3.0 TDI | OEM 059907807AB SNS452 | Nitrogen Oxide Sensor","description":"\u003ch2 data-section-id=\"l0zaa4\" data-start=\"117\" data-end=\"129\" class=\"PDq2pG_selectionAnchorContainer\"\u003eFitment\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"130\" data-end=\"266\"\u003eCompatible with Volkswagen Group diesel vehicles equipped with 3.0 TDI engines and SCR (Selective Catalytic Reduction) emission systems.\u003c\/p\u003e\n\u003cp data-start=\"268\" data-end=\"404\"\u003eThis part number is commonly used in VAG diesel exhaust aftertreatment systems for nitrogen oxide (NOx) monitoring and emission control.\u003c\/p\u003e\n\u003cul data-start=\"406\" data-end=\"546\"\u003e\n\u003cli data-section-id=\"10zseae\" data-start=\"406\" data-end=\"421\"\u003e059907807AB\u003c\/li\u003e\n\u003cli data-section-id=\"lm165x\" data-start=\"422\" data-end=\"432\"\u003eSNS452\u003c\/li\u003e\n\u003cli data-section-id=\"vhtxl4\" data-start=\"433\" data-end=\"505\"\u003eVolkswagen \/ Audi \/ Porsche \/ VAG 3.0 TDI diesel engine applications\u003c\/li\u003e\n\u003cli data-section-id=\"oh2ok3\" data-start=\"506\" data-end=\"546\"\u003eSCR \/ AdBlue diesel emission systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"548\" data-end=\"612\"\u003eFitment depends on engine code, model year, and ECU calibration.\u003c\/p\u003e\n\u003chr data-start=\"614\" data-end=\"617\"\u003e\n\u003ch2 data-section-id=\"1sn8sr4\" data-start=\"619\" data-end=\"645\"\u003eTechnical Description\u003c\/h2\u003e\n\u003cp data-start=\"646\" data-end=\"767\"\u003eThis NOx sensor is installed in diesel exhaust systems to measure nitrogen oxide concentration in the exhaust gas stream.\u003c\/p\u003e\n\u003cp data-start=\"769\" data-end=\"921\"\u003eIt sends real-time data to the engine control unit (ECU) to support SCR system dosing strategy and emission regulation in diesel aftertreatment systems.\u003c\/p\u003e\n\u003chr data-start=\"923\" data-end=\"926\"\u003e\n\u003ch2 data-section-id=\"14jk4wc\" data-start=\"928\" data-end=\"955\"\u003eSymptoms \/ Fault Codes\u003c\/h2\u003e\n\u003cp data-start=\"956\" data-end=\"1007\"\u003eCommon symptoms of a faulty NOx sensor may include:\u003c\/p\u003e\n\u003cul data-start=\"1009\" data-end=\"1170\"\u003e\n\u003cli data-section-id=\"1e8aa3i\" data-start=\"1009\" data-end=\"1031\"\u003eCheck engine light\u003c\/li\u003e\n\u003cli data-section-id=\"tb88yx\" data-start=\"1032\" data-end=\"1080\"\u003eP2200 \/ P229F fault codes (system dependent)\u003c\/li\u003e\n\u003cli data-section-id=\"6lf0o5\" data-start=\"1081\" data-end=\"1103\"\u003eSCR system warning\u003c\/li\u003e\n\u003cli data-section-id=\"d1njym\" data-start=\"1104\" data-end=\"1146\"\u003eReduced engine performance \/ limp mode\u003c\/li\u003e\n\u003cli data-section-id=\"12mwl3m\" data-start=\"1147\" data-end=\"1170\"\u003eIncreased emissions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1172\" data-end=\"1175\"\u003e\n\u003ch2 data-section-id=\"1exb13b\" data-start=\"1177\" data-end=\"1199\"\u003eOE \/ Part Numbers\u003c\/h2\u003e\n\u003cul data-start=\"1200\" data-end=\"1226\"\u003e\n\u003cli data-section-id=\"10zseae\" data-start=\"1200\" data-end=\"1215\"\u003e059907807AB\u003c\/li\u003e\n\u003cli data-section-id=\"lm165x\" data-start=\"1216\" data-end=\"1226\"\u003eSNS452\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1228\" data-end=\"1231\"\u003e\n\u003ch2 data-section-id=\"x9bttf\" data-start=\"1233\" data-end=\"1241\"\u003eFAQ\u003c\/h2\u003e\n\u003ch3 data-section-id=\"uyxxez\" data-start=\"1243\" data-end=\"1275\"\u003eWhat does a NOx sensor do?\u003c\/h3\u003e\n\u003cp data-start=\"1276\" data-end=\"1398\"\u003eIt measures nitrogen oxide levels in diesel exhaust systems and sends data to the ECU for emission control in SCR systems.\u003c\/p\u003e\n\u003ch3 data-section-id=\"13k5ovo\" data-start=\"1400\" data-end=\"1423\"\u003eWhere is it used?\u003c\/h3\u003e\n\u003cp data-start=\"1424\" data-end=\"1592\"\u003eIt is used in Volkswagen Group 3.0 TDI diesel engines equipped with SCR\/AdBlue systems to monitor exhaust gases before or after the catalyst depending on configuration.\u003c\/p\u003e\n\u003ch3 data-section-id=\"j97hsx\" data-start=\"1594\" data-end=\"1625\"\u003eWhat happens if it fails?\u003c\/h3\u003e\n\u003cp data-start=\"1626\" data-end=\"1737\"\u003eIt may trigger emission system warnings, fault codes, and reduced engine performance depending on ECU strategy.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1kftkrw\" data-start=\"1739\" data-end=\"1794\"\u003eIs SNS452 interchangeable with other NOx sensors?\u003c\/h3\u003e\n\u003cp data-start=\"1795\" data-end=\"1906\"\u003eNot always. Even if physical connectors appear similar, compatibility depends on OE number and ECU calibration.\u003c\/p\u003e","brand":"ASHENG","offers":[{"title":"Default Title","offer_id":51863388192900,"sku":"059907807AB\/SNS452","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/8313\/1012\/files\/12_8c4f0041-c2a4-4ea2-b5a1-e042237ecce0.jpg?v=1778947112","url":"https:\/\/www.jslook.com\/products\/vw-audi-3-0-tdi-nox-sensor-059907807ab-sns452","provider":"ASHENG","version":"1.0","type":"link"}