{"product_id":"upstream-downstream-oxygen-sensor-1996-2000-honda-civic","title":"Upstream \u0026 Downstream O2 Oxygen Sensor Pair for 1996-2000 Honda Civic 1.6L","description":"\u003c!-- split --\u003e\n\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis pair covers both oxygen sensors on the 1996-2000 Honda Civic 1.6L — the upstream sensor ahead of the catalytic converter and the downstream sensor behind it. On a car this age, both sensors are usually the originals: the upstream element wears sluggish and the fueling goes rich, the downstream signal drifts and the ECU starts questioning the converter. The usual symptoms are a check engine light, worse fuel economy, a lazy throttle and a failed emissions test. Replacing both at once makes sense — they have been working the same number of miles, and the labor overlaps.\u003c\/p\u003e\n\n\u003ch3\u003eVehicle fitment \u0026amp; specifications\u003c\/h3\u003e\n\u003ctable class=\"border-table not-table-block\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996 Honda Civic CX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996 Honda Civic DX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996 Honda Civic EX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996 Honda Civic HX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y5 Engine; Automatic CVT Trans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1996 Honda Civic LX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997 Honda Civic CX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997 Honda Civic DX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997 Honda Civic EX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997 Honda Civic HX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y5 Engine; Automatic CVT Trans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1997 Honda Civic LX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998 Honda Civic CX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998 Honda Civic DX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998 Honda Civic EX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998 Honda Civic GX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998 Honda Civic HX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y5 Engine; Automatic CVT Trans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998 Honda Civic LX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999 Honda Civic CX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999 Honda Civic DX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999 Honda Civic EX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999 Honda Civic GX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999 Honda Civic HX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y5 Engine; Automatic CVT Trans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999 Honda Civic LX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999 Honda Civic Value Package\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 Honda Civic CX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 Honda Civic DX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 Honda Civic EX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 Honda Civic GX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 Honda Civic HX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y5 Engine; Automatic CVT Trans\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2000 Honda Civic LX\u003c\/td\u003e\n\u003ctd\u003e1.6L, D16Y7 Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eUpstream \u0026amp; downstream oxygen sensor set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOE number\u003c\/td\u003e\n\u003ctd\u003e234-4065, 234-4099\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e2 pieces (1 upstream, 1 downstream)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUpstream sensor\u003c\/strong\u003e\u003cbr\u003eDetects the air-fuel ratio of the engine across different operating conditions and feeds it back to the ECU, so fueling stays where it should be.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDownstream sensor\u003c\/strong\u003e\u003cbr\u003eMonitors whether the catalytic converter is working as it should, and helps catch a failing converter before the problem gets expensive.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat a healthy pair does\u003c\/strong\u003e\u003cbr\u003eCorrect sensor signals support lower harmful emissions, better fuel economy, steadier engine performance, and help prevent premature failure of the catalytic converter.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChecked before shipping\u003c\/strong\u003e\u003cbr\u003eEvery sensor is tested before it ships to make sure the output matches the parameters listed for your vehicle.\u003c\/p\u003e\n\n\u003ch3\u003eFitment check\u003c\/h3\u003e\n\u003cp\u003eListed for the 1996-2000 Honda Civic trims and engine codes in the table above. This set is engine-specific, so check your engine code before ordering — it is on the emissions label under the hood and stamped on the block.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's in the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 upstream oxygen sensor\u003c\/li\u003e\n\u003cli\u003e1 downstream oxygen sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy replace both sensors at once?\u003c\/strong\u003e\u003cbr\u003eBoth sensors have been in service the same number of miles, so when one is worn the other is not far behind. Doing both in one job saves a second round of labor and gives the ECU a matched pair of signals to work from.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my Civic Si?\u003c\/strong\u003e\u003cbr\u003eThe Si is not in the fitment list above. This set is engine-specific, so verify your engine code against the table before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I find my engine code?\u003c\/strong\u003e\u003cbr\u003eCheck the emissions label under the hood, or the code stamped on the engine block. The table above covers the D16Y7 and D16Y5 engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere does each sensor install?\u003c\/strong\u003e\u003cbr\u003eThe upstream sensor threads into the exhaust ahead of the catalytic converter; the downstream sensor sits behind it. Positions match the factory locations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill replacing the sensors turn off my check engine light?\u003c\/strong\u003e\u003cbr\u003eIf the code points at a worn sensor, replacing it addresses the cause and the light clears after the ECU re-checks. If the code comes back, the fault is elsewhere — wiring, an exhaust leak or the converter itself — and the code needs to be read before parts are replaced.\u003c\/p\u003e","brand":"AUXITO","offers":[{"title":"Default Title","offer_id":49293692764404,"sku":"YCGQ-CIVIC-96-00-UD","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0012\/8063\/9049\/files\/upstream-and-downstream-oxygen-sensors-for-1996-2000-honda-civic-2pcs-1259398337.jpg?v=1789901889","url":"https:\/\/auxito.com\/products\/upstream-downstream-oxygen-sensor-1996-2000-honda-civic","provider":"AUXITO","version":"1.0","type":"link"}