The 2-wire narrow-band oxygen sensor is a replacement sensor for select 1991-1995 Geo and Toyota applications. It signals whether the exhaust is running rich or lean so the engine computer can trim fuel delivery.

Walker Products 350-32001 Oxygen Sensor Features:

• Fits 1993-1995 Geo Prizm, Toyota Corolla; 1991-1995 Toyota Previa; 1991-1994 Toyota Tercel; 1992-1995 Toyota Paseo; 1994-1995 Toyota Celica
• Engine coverage includes 1.5L I4, 1.6L I4, 1.8L I4, 2.4L I4 applications
• Sensor locations by application: B1S1, B1S2 (bank and sensor number)
• Used in both upstream and downstream positions, depending on application
• 2-wire narrow-band oxygen sensor
• Unheated design
• Flange-mount body
• Overall length of 425 mm (16.7 in.)
• Male/female oblong connector at the harness end with 2 spade terminals
• Platinum electrode layer with a protective coating against combustion residue