{"product_id":"o2-oxygen-sensor-upstream-downstream-for-honda-hr-v-2016-2021-1-8l","title":"O2 Oxygen Sensor Upstream Downstream for Honda HR-V (2016-2021) 1.8L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Upstream \u0026amp; Downstream O2 Sensor Kit for 2016-2021 Honda HR-V (RU5\/RU6)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e Monitors exhaust oxygen levels on the 2016-2021 Honda HR-V \u003cstrong\u003eRU5\/RU6\u003c\/strong\u003e (\u003cstrong\u003eR18Z9 1.8L\u003c\/strong\u003e) to regulate fuel trim and verify catalyst efficiency.\u003c\/p\u003e\u003ch3\u003eThe Stock Honda HR-V Sensor Failure\u003c\/h3\u003e\u003cp\u003eOn the \u003cstrong\u003eRU5\/RU6\u003c\/strong\u003e HR-V equipped with the \u003cstrong\u003eR18Z9 1.8L\u003c\/strong\u003e engine, factory oxygen sensors endure severe thermal cycling, moisture shock, and carbon fouling. As the internal zirconia element ages or the integrated heater circuit burns out, voltage switching speed drops sharply. This sluggish response skews PCM closed-loop fueling trims, degrades fuel economy, causes drivability issues, and triggers persistent \u003cstrong\u003eP0135\u003c\/strong\u003e, \u003cstrong\u003eP0141\u003c\/strong\u003e, or \u003cstrong\u003eP0171\u003c\/strong\u003e fault codes.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM O2 Sensor\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light \/ DTCs:\u003c\/strong\u003e Triggers \u003cstrong\u003eP0135\u003c\/strong\u003e (upstream heater), \u003cstrong\u003eP0141\u003c\/strong\u003e (downstream heater), or \u003cstrong\u003eP0133\u003c\/strong\u003e slow-response codes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eErratic Fuel Trim:\u003c\/strong\u003e Skewed lambda feedback causes rough idle, hesitation, and \u003cstrong\u003eP0171\u003c\/strong\u003e lean faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFailed Emissions \u0026amp; MPG Drop:\u003c\/strong\u003e Incomplete OBD-II readiness monitors and elevated fuel consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Zirconia O2 Sensor Solution\u003c\/h3\u003e\u003cp\u003eThis matched upstream and downstream kit replaces both sensors simultaneously to restore accurate closed-loop fuel control and catalyst monitoring on the \u003cstrong\u003eR18Z9 1.8L\u003c\/strong\u003e. Each direct-fit unit features a fast-light-off zirconia ceramic element, laser-welded stainless housing, and corrosion-resistant protective shield against thermal shock and moisture. Factory-length harnesses and pre-terminated OEM connectors match part \u003cstrong\u003e234-4979\u003c\/strong\u003e for plug-and-play installation without cutting or wire splicing.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 Upstream Oxygen Sensor\u003c\/li\u003e\n\u003cli\u003e1 Downstream Oxygen Sensor\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2016-2021 Honda HR-V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eR18Z9 1.8L \/ RU5, RU6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEmissions \u0026amp; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eHeated Zirconia Ceramic \/ Direct-Fit OEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect Bolt-On OEM Replacement (No Cutting or Welding)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e234-4979\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e2016-2021 Honda HR-V (1.8L US-Market — 2-Sensor System: 1 Upstream, 1 Downstream; confirm engine before ordering)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the RU5\/RU6 HR-V?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e Direct fit for the 2016-2021 Honda HR-V with the \u003cstrong\u003eR18Z9 1.8L\u003c\/strong\u003e engine. \u003cstrong\u003eUS-market 1.8L only; confirm engine before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0135, P0141, or P0420 codes?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, for sensor faults.\u003c\/strong\u003e Replaces faulty heaters (\u003cstrong\u003eP0135\u003c\/strong\u003e\/\u003cstrong\u003eP0141\u003c\/strong\u003e), though persistent \u003cstrong\u003eP0420\u003c\/strong\u003e indicates catalyst failure.\u003c\/p\u003e\u003ch4\u003eAre wiring modifications required for installation?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e Plug-and-play OEM connectors require zero splicing; clean bung threads and torque to spec.\u003c\/p\u003e\u003ch3\u003eThe Honda Precision Standard\u003c\/h3\u003e\u003cp\u003eReplacing both sensors as a matched set restores factory \u003cstrong\u003eR18Z9 1.8L\u003c\/strong\u003e stoichiometric precision and CEL-free operation. Expect consistent closed-loop fuel economy, clean emissions readiness, and crisp throttle response.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68119226319096,"sku":"DS-EHMLHPGRH","price":67.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/o2-oxygen-sensor-upstream-downstream-for-honda-hr-v-2016-2021-1-8l-1.jpg?v=1794716850","url":"https:\/\/performancechiptuning.com\/products\/o2-oxygen-sensor-upstream-downstream-for-honda-hr-v-2016-2021-1-8l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}