{"product_id":"jauge-air-carburant-52mm-sonde-lambda-large-bande","title":"52 mm Air-Fuel Gauge with Wideband Lambda Sensor","description":"\u003c!--v3.1--\u003e\n\u003ch2\u003e52 mm air-fuel gauge — monitor your mixture in real time\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e52 mm air-fuel gauge\u003c\/strong\u003e displays your engine's \u003cstrong\u003eair-fuel ratio\u003c\/strong\u003e in real time using the \u003cstrong\u003ewideband lambda sensor\u003c\/strong\u003e included in the kit. A \u003cstrong\u003eblue LED digital display\u003c\/strong\u003e shows the numerical value while a \u003cstrong\u003e20-segment bar graph\u003c\/strong\u003e changes from red to green, allowing you to instantly spot a mixture that is too rich or too lean. It is the essential tool for any serious engine tuning.\u003c\/p\u003e\n\n\u003ch3\u003eWhy install an AFR gauge on your car\u003c\/h3\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eComplete ready-to-install kit\u003c\/strong\u003e: \u003cstrong\u003e52 mm gauge\u003c\/strong\u003e, \u003cstrong\u003ewideband lambda sensor\u003c\/strong\u003e, wiring harness and bracket included—nothing else to buy.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eInstant mixture reading\u003c\/strong\u003e: the AFR value updates several times a second, much faster than a stock narrow-band sensor.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eEngine protection\u003c\/strong\u003e: a mixture that is too lean under full load is the leading cause of failure in tuned or turbocharged engines.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eDual display\u003c\/strong\u003e: the \u003cstrong\u003edigital value\u003c\/strong\u003e for precision and the \u003cstrong\u003ecolored bar graph\u003c\/strong\u003e for reading while driving without taking your eyes off the road.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eBlack smoked dial\u003c\/strong\u003e: invisible when the engine is off and highly readable both at night and in bright sunlight.\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cstrong\u003eStandard 52 mm diameter\u003c\/strong\u003e: fits all \u003cstrong\u003egauge brackets\u003c\/strong\u003e on the market, whether on an A-pillar, air vent or center console.\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\u003ch3\u003eWho is this air-fuel ratio gauge for\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eair-fuel ratio\u003c\/strong\u003e, or AFR, measures how many grams of air the engine burns for every gram of fuel. At around \u003cstrong\u003e14.7:1\u003c\/strong\u003e, the mixture is considered \u003cstrong\u003estoichiometric\u003c\/strong\u003e; under full load, a \u003cstrong\u003eturbocharged\u003c\/strong\u003e engine usually requires \u003cstrong\u003e11.5 to 12.5:1\u003c\/strong\u003e. This gauge is therefore primarily intended for those who perform \u003cstrong\u003eengine remapping\u003c\/strong\u003e, install an \u003cstrong\u003eintake kit\u003c\/strong\u003e or \u003cstrong\u003efree-flow exhaust\u003c\/strong\u003e, run on E85 ethanol, or prepare a track car. Unlike a stock \u003cstrong\u003enarrow-band lambda sensor\u003c\/strong\u003e, the \u003cstrong\u003ewideband sensor\u003c\/strong\u003e remains accurate far from the stoichiometric point, where it matters most.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cp\u003eDiameter: \u003cstrong\u003e52 mm\u003c\/strong\u003e (2 inches). Voltage: \u003cstrong\u003e12 V\u003c\/strong\u003e. Display: \u003cstrong\u003eblue digital LED\u003c\/strong\u003e and \u003cstrong\u003e20-segment bar graph\u003c\/strong\u003e. Measuring range: \u003cstrong\u003e10:1 to 20:1\u003c\/strong\u003e. Sensor included: \u003cstrong\u003e4-wire wideband lambda sensor\u003c\/strong\u003e. Secondary function: \u003cstrong\u003ein-car voltmeter\u003c\/strong\u003e. Dial: \u003cstrong\u003eblack smoked\u003c\/strong\u003e. Installation: \u003cstrong\u003euniversal 12 V\u003c\/strong\u003e, gasoline. Included: gauge, sensor, wiring harness, bracket and hardware. Condition: \u003cstrong\u003e100% new\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation and maintenance\u003c\/h3\u003e\n\u003cp\u003eAllow \u003cstrong\u003e1 to 2 hours\u003c\/strong\u003e. The \u003cstrong\u003elambda sensor\u003c\/strong\u003e screws into an M18x1.5 bung on the exhaust system, ideally \u003cstrong\u003e30 to 60 cm\u003c\/strong\u003e after the manifold or turbocharger; if your system does not have one, a bung can be welded in or fitted with a clamp. Inside the cabin, three wires are sufficient: \u003cstrong\u003e+12 V switched ignition\u003c\/strong\u003e, \u003cstrong\u003eground\u003c\/strong\u003e and \u003cstrong\u003elighting\u003c\/strong\u003e. Allow the sensor to heat up for about \u003cstrong\u003e30 seconds\u003c\/strong\u003e before the reading stabilizes. Maintenance: none, except wiping the glass with a microfiber cloth. Compatibility should be checked before installation depending on your exhaust system.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the ideal AFR value to aim for?\u003c\/strong\u003e\u003cbr\u003eAround \u003cstrong\u003e14.7:1\u003c\/strong\u003e under partial load and \u003cstrong\u003e11.5 to 12.5:1\u003c\/strong\u003e under full load on a turbocharged engine. Below 11, the engine will run rich; above 13 under load, it will overheat.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be installed on a diesel engine?\u003c\/strong\u003e\u003cbr\u003eNo. This \u003cstrong\u003eair-fuel ratio gauge\u003c\/strong\u003e and its sensor are designed for \u003cstrong\u003egasoline\u003c\/strong\u003e engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need to drill into the exhaust system?\u003c\/strong\u003e\u003cbr\u003eYes, if there is no available bung: an \u003cstrong\u003eM18x1.5 bung\u003c\/strong\u003e must be welded in. Many sport systems already have one, sealed with a plug.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the stock sensor be reused?\u003c\/strong\u003e\u003cbr\u003eNo, a \u003cstrong\u003enarrow-band sensor\u003c\/strong\u003e does not provide a usable value under full load. This is why the \u003cstrong\u003ewideband sensor\u003c\/strong\u003e is included.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the gauge turn off with the ignition?\u003c\/strong\u003e\u003cbr\u003eYes, if it is wired to a \u003cstrong\u003eswitched +12 V supply\u003c\/strong\u003e. It does not draw battery power when the engine is off.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eTake control of your engine tuning: complete gauge and wideband sensor kit, instant reading, universal 12 V installation.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Air-fuel ratio gauge\u003cbr\u003e\u003cstrong\u003eDiameter:\u003c\/strong\u003e 52 mm\u003cbr\u003e\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12 V\u003cbr\u003e\u003cstrong\u003eDisplay:\u003c\/strong\u003e Digital LED and 20-segment bar graph\u003cbr\u003e\u003cstrong\u003eSensor:\u003c\/strong\u003e Wideband lambda sensor included\u003cbr\u003e\u003cstrong\u003eEngine type:\u003c\/strong\u003e Gasoline\u003cbr\u003e\u003cstrong\u003eInstallation:\u003c\/strong\u003e Universal, M18x1.5 bung\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e 100% New\u003c\/p\u003e","brand":"becquet-voiture.com","offers":[{"title":"52 mm Gauge and Lambda Probe","offer_id":52861467066655,"sku":"14:200004890#BL0045-6238-BL0167","price":142.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/7911\/7343\/files\/Sc1160a9630234e55aa357ace7794a65dW.webp?v=1788859254","url":"https:\/\/becquet-voiture.com\/en\/products\/jauge-air-carburant-52mm-sonde-lambda-large-bande","provider":"Becquet Voiture","version":"1.0","type":"link"}