Description

Oxygen (O₂ ) Sensor – Toyota Supra Turbo 7MGTE 3.0L (1987–1992) Upstream This oxygen (O₂) sensor is a direct-fit upstream replacement for 1987–1992 Toyota Supra Turbo models equipped with the 7MGTE 3.0L inline-6 engine . Mounted before the catalytic converter, the upstream oxygen sensor plays a critical role in monitoring exhaust oxygen levels and sending precise data to the engine control unit (ECU). A failing upstream oxygen sensor can cause poor fuel economy, rough idle, hesitation under boost, reduced power, rich or lean conditions, and check engine lights . Replacing it restores accurate fuel mixture control, improves throttle response, and helps protect the turbocharged engine from improper combustion. Built with high-temperature-resistant materials, this sensor is designed to handle the demanding conditions of turbocharged Supra engines. Key Features & Benefits Direct-fit upstream oxygen O₂ sensor Designed for Toyota Supra Turbo 7MGTE engines Accurate air-fuel ratio feedback to ECU Improves fuel economy and turbo response Helps prevent rich or lean running conditions Reduces exhaust emissions High-temperature, turbo-rated construction Plug-and-play installation Engine Compatibility Toyota 7MGTE 3.0L Inline-6 Turbocharged Engine Vehicle Applications Toyota Supra Turbo: 1987 3.0L L6 Turbo 1988 3.0L L6 Turbo 1989 3.0L L6 Turbo 1990 3.0L L6 Turbo 1991 3.0L L6 Turbo 1992 3.0L L6 Turbo Frequently Asked Questions – Toyota Supra 7MGTE Oxygen Sensor What does the upstream oxygen sensor do? The upstream oxygen sensor monitors exhaust oxygen levels before the catalytic converter to help control fuel mixture and engine performance. What symptoms indicate a bad oxygen sensor? Common symptoms include poor fuel economy, hesitation under boost, rough idle, loss of power, and a check engine light. Is this sensor suitable for turbocharged engines? Yes, this oxygen sensor is designed to withstand high exhaust temperatures found in turbocharged Supra engines. Does this fit all Toyota Supra models? No, this sensor is specifically for 1987–1992 Toyota Supra Turbo models with the 7MGTE 3.0L engine. Is professional installation recommended? Installation is plug-and-play, but professional installation is recommended to ensure proper fitment and sensor placement.