Bosch 15217 Oxygen Sensor, OE Type Fitment

Product Features
  • Designed to determine the oxygen content of the exhaust gas
  • Improves fuel economy and lowers emission
  • Includes four OE wideband wires
  • Facilitate easy installation
  • Corrosion resistant
    • Product Description: Bosch Oxygen Sensors are designed to determine the oxygen content of the exhaust gas and to improve the fuel success of the vehicle. They are made from OEM materials that ensure improved performance and long lasting durability. These sensors facilitate easy installation and are corrosion resistant.
    Product Details:
  • Item Weight: 4 ounces
  • Shipping Weight: 4.2 ounces
  • Shipping: Currently, item can be shipped individual within the U.S.
  • Item model number: 15217
    • Product Reviews:
    Product arrived as per shipping schedule.
    Easily installed and connected.
    Check engine light cleared.
    Emission test passed.
    I purchased this unit because my 1999 Toyota Avalon XLS check engine light came on near two trouble codes including P1155 A/F Sensor Heater Circuit (Bank 2 Sensor 1. I confirmed that the heating circuit of the old oxygen sensor was open circuit. This sensor is located contained by the front of the engine on the drivers side in the exhaust manifold before the catalytic converter. Previously I bought two other sensors which claimed to be a direct replacement but they didn't fit. The electrical plug is coded with ridges on the sides which one and only allows the correct one to be plugged in. Looking at the image of the plug I saw that this plug was correct. After I replaced it and reset the check engine light, it have remained off and both engine codes did not come on again.
    Like the first reviewer of this item, I purchased this unit because my 1999 Toyota Avalon check engine light came on (92K miles) near two trouble codes including P1155 A/F Sensor Heater Circuit (Bank 2 Sensor 1, which in this car is the sensor in the exhaust manifold nearest to the radiator - Bank 1 is close to the firewall). I confirmed that the heat circuit of the old oxygen sensor was open circuit by checking the resistance between the two connector pins for the black wires on the sensor after unplugging it. After having it replaced and resetting the check engine bedside light with an OBD scan tool I was off an running.

    The sensor IS an oxygen sensor "Wide Band Oxygen Sensor" is on the box, but its function is to be an Air-Fuel ratio sensor upstream of the catalytic converter. Confusing at first.

    This sensor is half the cost of the equivalent Toyota chunk and it has Bosch quality. Works great. Comes complete with a plastic cap over the business cease and has thread anti-seize compound pre-applied. You'll see why that last bit is important if you read on.

    2 tips for do-it-yourselfers approaching this job:

    For a fitting OBD scan tool try the Launch CReader V unit. Yes, it's made in China but it is pretty simple to use, can clear codes easily, and it's cheaper than 1 visit to my service station for a diagnosis of my Check Engine hurricane lantern (1 hr labor charge at $130/hr) so it already paid for itself. Launch CReader V scan tool This tool gave me the correct code without a visit to the service fjord, allowing me to confidently order a replacement part, the Bosch A/F sensor.

    For getting the old sensor out - WOW - it can be a real chore. They may compassionate of look like spark plugs but they are nowhere near as easy to get out. If you're lucky later a 22mm box wrench with a cheater bar might work for you. A 7/8" box-end wrench might do in a pinch but it could round off the hex points of the sensor. I be not lucky; it wouldn't budge, even with over 80 pounds of heaving on the sucker with the 22mm wrench, hammer blows, and plenty of Liquid Wrench and PB Blaster both with the engine cold and hot. In the close I gave up and had my service station go after it, which involved them breaking off the stop of sensor and then taking an impact wrench to the base, followed by re-tapping the manifold bung (threads) because the sensor body was essentially weld to the bung and some bits of it were left in the bung after removal.

    Don't even think of trying to seize one out with an open-end wrench or an adjustable wrench.

    If and when the Bank 2 sensor (the one behind the engine) goes out on this car I'm not going to try for DIY replacement. I'll simply buy another one of these Bosch sensors and go right to the service station with it. No diagnostic charge, no Toyota parts prices, no service station markup on parts, no skinned knuckles. Yes, the labor charge for remove-and-replace is still a pain, but that's OK on an otherwise trouble-free old coup¨¦.
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    I received a P1155 OBD2 error code for my 2002 Lexus RX300. A/F Sensor Bank 2 Sensor 1. This is located on the exhaust manifold between the engine and the catalytic converter...

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