Toyota o2 sensor - Up to 30% off all Sensors AdToyota o2 sensor. Massive range of Oxygen Sensors: Bosch, Denso, Pierburg and NGK. Free Delivery on all Lambda Sensors. Same Day Dispatch - All Car & Van Models Covered.Best Prices OnlineSatisfaction GuaranteedCar PartsAll Car Van Makes & Models Covered100's of Brands to choose fromToolsDraper Laser Stormforce 3M and more1000's of Tools for every JobService PartsPads Discs Filters Plugs Blades OilMajor Brands all stockedAccessoriesRoof Racks Car Mats Deflectors etcEvery Accessory ever required!See results only from micksgarage How to Test the Toyota Oxygen Sensor | It Still Runs If you notice a drop in your Toyota's fuel economy, the vehicle runs rough and the exhaust smells strong or the engine is hard to start, you may have a faulty oxygen sensor. The oxygen, or O2, sensor reads the percentage of oxygen in the exhaust coming from the engine and sends this information to the computer. O2 Sensor & Wiring Diagrams - YouTube Click to view on Bing2:52O2 Sensor & Wiring Diagrams Amazon Printed Books https: Presented here to help you understand the O2 sensor from an electronics and wiring diagram point of view.Author: ADPTrainingViews: 389K 1993 Toyota Pick-up Oxygen Sensor Wiring | Toyota Nation Forum I have a 1993 Toyota Pick-up, 4WD, with the 4 cylinder engine. The wiring leading to my oxgen sensor came loose and were torn by the drive shaft. Since the oxygen sensor was original (as near as I could tell) I purchased a Bosch oxygen sensor and wired it in following their direction..