The oxygen sensor installs in the upstream position on 1994-1995 Saab 900 and 9000. It signals whether the exhaust is running rich or lean so the engine computer can trim fuel delivery. A built-in heater brings the element to operating temperature quickly after a cold start.

Walker Products 350-33062 Oxygen Sensor Features:

• Fits 1994-1995 Saab 900, 9000
• Engine coverage includes 2.0L I4, 2.3L I4 applications
• Sensor location by application: B1S1 (bank and sensor number)
• 3-wire narrow-band oxygen sensor
• Built-in heater for fast warm-up
• M18x1.5 threaded mounting with a 22 mm hex, 1100 mm (43.3 in.) overall length
• Male/female rectangle connector at the harness end with 3 spade terminals
• Platinum electrode layer with a protective coating against combustion residue