{"product_id":"ntk-lambda-sensor-o2-sensor-ngk-91515-oza770-ee54","title":"NTK Lambda\/Oxygen O2 Sensor - NGK 91515 \/ OZA770-EE54 - 4-Wire 500mm - Fits BMW 1 3 5 7 Series \u0026 X1, Mitsubishi Colt Z30\/CZC, Smart Forfour 454 - Upstream\/Downstream Direct-Fit Replacement","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \n  \u003ch2\u003eNTK 91515 OZA770-EE54 4‑Wire Exhaust Gas Oxygen Probe 500 mm Lead\u003c\/h2\u003e\n  \n  \u003cp\u003eRestore crisp fuelling, smooth idle and clean emissions with this OE-grade NTK by NGK exhaust oxygen probe. Part numbers NGK 91515 and NTK OZA770-EE54. This heated 4‑pin, 500 mm lead, plug-in mixture sensor is a direct-fit unit for selected BMW petrol models, Mitsubishi Colt Z30 and CZC, and the Smart Forfour 454. Suitable for primary pre-cat and secondary post-cat positions depending on the application, it delivers fast light-up, stable feedback to the ECU and reliable closed-loop control.\u003c\/p\u003e\n  \n  \u003cp\u003eWe run these sensors on our own cars and our customers consistently report better drivability, improved MPG and swift resolution of mixture-related warning lights. If you are chasing an emissions fault, rough running or poor fuel economy on a compatible model, this NTK 91515 OZA770‑EE54 is a proven fix that keeps petrol engines performing as they should.\u003c\/p\u003e\n  \n  \u003ch3\u003eWhy this NTK probe is a winning choice\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eOE quality from NTK by NGK for precise AFR feedback and durability\u003c\/li\u003e\n    \u003cli\u003eHeated 4‑wire design for rapid warm-up and stable signal at idle and cruise\u003c\/li\u003e\n    \u003cli\u003e500 mm harness with factory-style connector for a true plug-and-play install\u003c\/li\u003e\n    \u003cli\u003eDirect replacement for front or rear mixture sensor on listed vehicles\u003c\/li\u003e\n    \u003cli\u003eHelps restore fuel economy, throttle response and MOT-friendly emissions\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003ePart numbers and tech details\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eBrand: NTK by NGK\u003c\/li\u003e\n    \u003cli\u003ePart number: NGK 91515\u003c\/li\u003e\n    \u003cli\u003eNTK code: OZA770-EE54\u003c\/li\u003e\n    \u003cli\u003eCircuits: 4 wires\u003c\/li\u003e\n    \u003cli\u003eLead length: 500 mm\u003c\/li\u003e\n    \u003cli\u003eFitment position: pre-cat front or post-cat rear depending on vehicle, Bank 1 Sensor 1 or Bank 1 Sensor 2\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eVehicle applications\u003c\/h3\u003e\n  \u003cp\u003ePlease check your vehicle details below and contact us if you need confirmation. This probe fits the following petrol platforms where specified:\u003c\/p\u003e\n  \n  \u003ch4\u003eBMW petrol applications\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 Series E81 E82 E87 E88 - 116i, 118i, 120i\u003c\/li\u003e\n    \u003cli\u003e3 Series E46 - 316i, 316Ci\u003c\/li\u003e\n    \u003cli\u003e3 Series E90 E91 E92 E93 - 316i, 318i, 320i\u003c\/li\u003e\n    \u003cli\u003e5 Series E60 E61 - 523i, 525i, 530i\u003c\/li\u003e\n    \u003cli\u003e5 Series F10 - 523i\u003c\/li\u003e\n    \u003cli\u003e7 Series E65 E66 E67 - 730i and 730Li\u003c\/li\u003e\n    \u003cli\u003eX1 E84 - 18i\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch4\u003eMitsubishi\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003eColt VI Z30 - 1.1, 1.1 LPG, 1.3, 1.3 LPG, 1.5, 1.5 CZT\u003c\/li\u003e\n    \u003cli\u003eColt CZC Convertible RG - 1.5 Z23 and 1.5 Turbo Z23\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch4\u003eSmart\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003eForfour I 454 - 1.1, 1.3, 1.5 variants\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003cp\u003eTip: primary equals pre-cat front, secondary equals post-cat rear. If in doubt, compare the plug type and cable length with your original unit.\u003c\/p\u003e\n  \n  \u003ch3\u003eFitting and support\u003c\/h3\u003e\n  \u003cp\u003eProfessional installation recommended. MJ Modifications offers fitting at our Warwickshire workshop. For a quote email info@mjmodifications.co.uk.\u003c\/p\u003e\n  \n  \u003ch3\u003eCompatibility check before dispatch\u003c\/h3\u003e\n  \u003cp\u003eOrder with confidence. We can verify fitment using your UK registration or the last 7 of your VIN. Add your vehicle details at checkout or email us for help.\u003c\/p\u003e\n  \n  \u003ch3\u003eHelpful search phrases\u003c\/h3\u003e\n  \u003cp\u003eexhaust oxygen probe 4 wire, AFR sensor 4 pin 50 cm, front oxygen probe BMW E90 320i, rear mixture sensor BMW E60 525i, pre cat sensor BMW 118i, post cat sensor BMW 530i, B1S1 sensor BMW petrol, B1S2 sensor BMW petrol, BMW X1 18i O2 probe, Smart Forfour 454 petrol AFR sensor, Mitsubishi Colt CZT oxygen probe, Colt CZC pre cat lambda, Colt Z30 rear oxygen sensor, NGK 91515 NTK OZA770-EE54 direct fit, 4 wire zirconia lambda, petrol emissions sensor replacement.\u003c\/p\u003e\n  \n\u003c\/div\u003e","brand":"NGK","offers":[{"title":"Default Title","offer_id":56006621888898,"sku":null,"price":76.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/ntk-lambda-default-1.jpg?v=1764059001","url":"https:\/\/mjmodifications.co.uk\/products\/ntk-lambda-sensor-o2-sensor-ngk-91515-oza770-ee54","provider":"MJ Modifications","version":"1.0","type":"link"}