DriveWire REPA960910 Upstream Air/Fuel Ratio Oxygen Sensor 4-Wire OEM Replacement

The DriveWire REPA960910 is a direct-fit, OEM-replacement upstream air/fuel ratio (A/F) oxygen sensor designed for precise exhaust gas monitoring. Positioned before the catalytic converter (Bank 1, Sensor 1), this 4-wire heated wideband sensor continuously measures the oxygen content in exhaust gases, allowing the engine control module (ECM) to fine-tune the air/fuel mixture for optimal combustion efficiency and reduced emissions.

Built to match original equipment specifications, the REPA960910 is a drop-in replacement that restores factory-level engine management performance. The 4-wire design integrates a built-in heater element to bring the sensor up to operating temperature quickly, ensuring accurate readings even during cold starts.

Key Features:

• Type: Air/Fuel Ratio (A/F) Sensor — upstream wideband oxygen sensor
• Wire Count: 4-wire heated design for fast warm-up and stable output
• Location: Before catalytic converter (upstream), Bank 1, Sensor 1 (B1S1)
• Configuration: Sold individually
• Fitment: OEM direct-fit replacement — no modifications required
• Function: Monitors exhaust oxygen levels to optimize air/fuel mixture and fuel economy
• OEM Cross-Reference: Engineered to replace original Honda air/fuel sensor

Replacing a faulty air/fuel ratio sensor with the DriveWire REPA960910 can resolve issues such as a lit check engine light, poor fuel economy, rough idle, and failed emissions tests. This sensor is sold individually and is designed for straightforward installation.