36531‑5A2‑A01 Air Fuel Ratio Sensor，Front Upstream Wideband O2 Sensor

This front upstream air‑fuel ratio sensor 36531‑5A2‑A01 is a wide‑band exhaust‑emission control component mounted before catalytic converter. It precisely detects oxygen content within exhaust gas and transmits real‑time signal to ECU for accurate air‑fuel mixture calibration for Honda Accord CR2, CR‑V RM3 RM4, Odyssey RC3 and Acura TLX UB1 equipped with K24W5 2.4L engine from 2013‑2019. Constructed with high‑precision wide‑band ceramic sensing chip, corrosion‑resistant stainless‑steel shell and heat‑resistant insulated wire harness. It delivers fast signal response, outstanding heat‑resistance and anti‑aging performance under long‑term high‑temperature exhaust‑pipe working environment. Thread specification, connector pin definition and wire‑harness length strictly comply with OEM specifications. Every unit passes signal‑response, high‑temperature aging and electrical‑conductivity test before shipment for direct plug‑and‑play installation without extra modification. Common failure symptoms include check‑engine warning light on, increased fuel consumption, unstable idle speed, poor acceleration and risk of catalytic‑converter damage. It is widely replaced during exhaust‑system and engine‑emission overhaul, serving as essential repair spare‑part for Honda K24W5 gasoline‑engine emission‑control maintenance.