{"product_id":"innovate-3855-afr-gauge-o2-sensor-lsu-4-9","title":"Innovate 3855 AFR gauge + O2 sensor LSU 4.9","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWideband Air\/Fuel Ratio Gauge — 8.0 to 18.0 AFR\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eAccurate air\/fuel ratio data is the foundation of any tuning work. This gauge combines a fully digital wideband controller with a Bosch LSU 4.9 sensor, giving a stable and repeatable AFR reading across the full 8.0–18.0 range — from rich full-load conditions to lean cruise.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003ePatented DirectDigital™ wideband sensor control — the sensor is managed entirely in the digital domain, eliminating the drift and calibration errors associated with analogue controllers\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband oxygen sensor\u003c\/li\u003e\n\u003cli\u003eFree-air sensor calibration, allowing accuracy to be maintained as the sensor ages\u003c\/li\u003e\n\u003cli\u003eReading range 8.0 to 18.0 AFR\u003c\/li\u003e\n\u003cli\u003eDatalogging and firmware updates via the included program cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eWhy sensor calibration matters\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003eA wideband sensor's output shifts over time as it accumulates hours and is exposed to fuel contaminants. Without the ability to re-calibrate, that drift shows up as a slowly increasing error in the displayed AFR — and any tuning decision made on that reading carries the same error. Free-air calibration lets the sensor be referenced back to a known value, so the gauge reports what the engine is actually doing rather than what the sensor used to report.\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eKit contents\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\"\u003e\n\u003cli\u003eGauge with black faceplate (faceplate is not interchangeable)\u003c\/li\u003e\n\u003cli\u003eBlack bezel and silver bezel\u003c\/li\u003e\n\u003cli\u003eBosch LSU 4.9 wideband oxygen sensor\u003c\/li\u003e\n\u003cli\u003e8 ft sensor cable (10 ft overall length)\u003c\/li\u003e\n\u003cli\u003eExhaust bung\u003c\/li\u003e\n\u003cli\u003eProgram cable (required only for datalogging and firmware updates)\u003c\/li\u003e\n\u003cli\u003eManual\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QT Parts","offers":[{"title":"Default Title","offer_id":53878205153627,"sku":"USA-INO-3855","price":319.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0713\/9937\/5126\/files\/innovate.jpg?v=1787655472","url":"https:\/\/www.qtparts.fi\/en\/products\/innovate-3855-afr-gauge-o2-sensor-lsu-4-9","provider":"QT Parts","version":"1.0","type":"link"}