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Explore a wide range of our Oxygen Sensor Bank 1 selection. Find top brands, exclusive offers, and unbeatable prices on eBay. Shop now for fast shipping and ... The P0130 code indicates a problem with the oxygen (O2) sensor circuit for bank 1 sensor 1, which can lead to increased emissions, reduced fuel economy, and ... The codes are produced because the oxygen sensor in bank-1, sensor-1 is getting an out-of-range reading, not necessarily that the O2 sensor is faulty. Position '1' refers to the upstream sensor (1/1 meaning bank 1, position 1, 2/1 meaning bank 2, position 1 [upstream], and so on...), the sensor 'in front of' ... A properly functioning oxygen sensor will show a rapidly fluctuating output voltage between approximately 0.1 and 1.0 volts. The 1st sensor is located closest to the engine and the last is located at the rear of the exhaust system. Generally, if we are talking about O2 sensors: Sensor ... You'll need to determine bank 1 vs. bank 2 to find the upstream and downstream O2 sensors. You can tell which bank is which by looking at the ... Went on ford parts site and it listed 4 oxygen sensor parts with very little information. Does anyone know which one I need? 1Pc Oxygen Sensors O2 Bank 1 Sensor 2 Downstream Rear Fit For Sienna 3.3L V6 2004 2005 2006 89465-08030 8946508030 On the way there my CEL came on. Since I was spending $1000 on tires they read the code for me and said it was an oxygen sensor. They asked if I ...