Buick Workshop Service and Repair Manuals > Century L4-151 2.5L VIN R TBI (1985) > Powertrain Management | Computers and Control Systems | Sensors and Switches - Computers and Control Systems | Oxygen Sensor | Component Information | Technical Service Bulletins

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Oxygen Sensor: Locations

Front Of Engine.

In Exhaust Manifold

Applicable to: 1984-85 Century w/4-151

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