An oxygen sensor is a device that measures the oxygen in a car's exhaust.
The computer uses this to adjust the amount and timing of fuel injected.
Christianiser Christianizer coloniser colonizer decarboniser decarbonizer homogeniser homogenizer oxygeniser oxygenizer patroniser patronizer revolutioniser revolutionizer scrutiniser scrutinizer sermoniser sermonizer synchroniser synchronizer mechaniser mechanizer organiser organizer reorganiser reorganizer tyranniser tyrannizer near: macadamiser macadamizer atomiser atomizer compromiser epitomiser epitomizer euphemiser euphemizer itemiser itemizer maximiser maximizer minimiser minimizer randomiser randomizer systemiser systemizer victimiser victimizer moderniser modernizer
Seeing as this question is posted in the Scrabble category, I've added some shorter words found in the Scrabble Tournament Words List, 2006 edition: zax, zaxes, oxazine, oxazines, oxidize, oxidizes, oxidizer (Zex and zexes also appear in other dictionaries, but not the Scrabble dictionary) - - -- --- anaxagorize, antibenzaldoxime, antioxidizer, antioxidizing, autoxidizability, autoxidizable, autoxidize, autoxidizer, axiomatization, axiomatizations, axiomatize, axiomatized, axiomatizes, axiomatizing, azodicarboxylic, azox, azoxazole, azoxime, azoxine, azoxonium, azoxy, azoxyanisole, azoxybenzene, azoxybenzoic, azoxynaphthalene, azoxyphenetole, azoxytoluidine, benzaldoxime, benzantialdoxime, benzdioxazine, benzdioxdiazine, benzdioxtriazine, benzhydroxamic, benzofuroquinoxaline, benzoglyoxaline, benzoperoxide, benzophenoxazine, benzoquinoxaline, benzoxate, benzoxy, benzoxyacetic, benzoxycamphor, benzoxyphenanthrene, benztrioxazine, chlordiazepoxide, chlordiazepoxides, contextualization, contextualizations, contextualize, contextualized, contextualizes, contextualizing, decarboxylization, decarboxylize, deflexionize, deoxidization, deoxidizations, deoxidize, deoxidized, deoxidizer, deoxidizers, deoxidizes, deoxidizing, deoxygenization, deoxygenize, deoxygenized, deoxygenizes, deoxygenizing, desoxybenzoin, dextrinize, dextrosazone, diazeuxes, diazeuxis, diazohydroxide, dooxidize, doxologize, doxologized, doxologizing, dysoxidizable, dysoxidize, epizeuxes, epizeuxis, epizeuxises, epoxidize, epoxidized, epoxidizes, epoxidizing, exauthorize, exauthorizeexc, excrementize, excursionize, excursionized, excursionizes, excursionizing, exhibitionize, existentialize, exoenzyme, exoenzymes, exoenzymic, exorcization, exorcize, exorcized, exorcizement, exorcizer, exorcizers, exorcizes, exorcizing, exordize, exostracize, experimentalize, experimentalized, experimentalizes, experimentalizing, experimentize, expermentized, expertize, expertized, expertizes, expertizing, extemporization, extemporizations, extemporize, extemporized, extemporizer, extemporizers, extemporizes, extemporizing, extensivization, extensivizations, exteriorization, exteriorizations, exteriorize, exteriorized, exteriorizes, exteriorizing, externalization, externalizations, externalize, externalized, externalizes, externalizing, externization, externize, exterritorialize, extrahazardous, extraquiz, extravaganza, extravaganzas, extrazodiacal, exzodiacal, fuzzbox, fuzzboxes, hexahydrobenzene, hexametrize, hexametrized, hexametrizes, hexametrizing, hydroxyazobenzene, hydroxybenzene, hydroxylization, hydroxylize, hydroxyzine, hydroxyzines, hyperdiazeuxis, hyperoxygenize, hyperoxygenized, hyperoxygenizing, hypodiazeuxis, hypozeuxis, inoxidizable, inoxidize, inoxidized, inoxidizing, iodoxybenzene, isazoxy, isoalloxazine, isoalloxazines, isocarboxazid, isocarboxazids, isoxazine, isoxazole, lexicalization, lexicalizations, lexicalize, lexicalized, lexicalizes, lexicalizing, lexiconize, maxillozygomatic, maximization, maximizations, maximize, maximized, maximizer, maximizers, maximizes, maximizing, mazopexy, methoxybenzene, metoxazine, nonexternalized, nonoxidizable, nonoxidization, nonoxidizing, orthoxazin, orthoxazine, overoxidization, overoxidize, overoxidized, overoxidizing, oxadiazole, oxazepam, oxazepams, oxazin, oxazine, oxazines, oxazole, oxdiazole, oxidizability, oxidizable, oxidization, oxidizations, oxidize, oxidized, oxidizement, oxidizer, oxidizers, oxidizes, oxidizing, oxozone, oxozonide, oxozonides, oxyazo, oxybenzaldehyde, oxybenzene, oxybenzoic, oxybenzyl, oxygenizable, oxygenization, oxygenize, oxygenized, oxygenizement, oxygenizer, oxygenizes, oxygenizing, oxymetazoline, oxymetazolines, oxyphenbutazone, oxyphenbutazones, oxytonize, paroxazine, paroxytonize, peroxidize, peroxidized, peroxidizement, peroxidizes, peroxidizing, phenoxazine, phenoxybenzamine, photooxidize, photooxidized, photooxidizes, photooxidizing, protoxidize, protoxidized, quixotize, recontextualize, recontextualized, recontextualizes, recontextualizing, reoxidize, reoxidized, reoxidizes, reoxidizing, reoxygenize, rhizotaxis, rhizotaxy, schizaxon, semiexternalized, semioxidized, semioxygenized, skeezix, squeezebox, squeezeboxes, sulfamethoxazole, sulfamethoxazoles, sulfisoxazole, sulphamethoxazole, sulphamethoxazoles, sulphisoxazole, taxidermize, taxidermized, taxidermizes, taxidermizing, texturize, texturized, texturizer, texturizers, texturizes, texturizing, toxosozin, trioxazine, underoxidize, underoxidized, underoxidizing, unoxidizable, unoxidized, unoxygenized, zanthoxyl, zanthoxyls, zanthoxylum, zax, zaxes, zeaxanthin, zelatrix, zelatrixes, zeroaxial, zeuxite, zeuxites, zex, zexes, zoopraxiscope, zootaxies, zootaxonomist, zootaxy, zootoxic, zootoxin, zootoxins, zooxanthella, zooxanthellae, zooxanthin, zygomaticomaxillary, zygomaxillare, zygomaxillary, zygotaxis, zymotoxic