Question about 1997 Toyota RAV4
Hi, assuming you have the 4-cylinder engine, this is your downstream oxygen sensor. Look carefully at the picture to find the right sensor, as there are several similar sensors on the truck. Before buying a new sensor, check the resistance of the heater in the sensor by disconnecting the sensor and connecting an ohmmeter to the terminals indicated in the second picture. The resistance should be 11-32 ohms, depending on the temperature (if the truck is hot from running, the resistance should be at the higher end of the range). If the resistance is outside this range, replace the sensor. You'll need a line wrench or special socket to remove the sensor, as the pigtail is an obstacle to a regular deep well socket. Please let me know if you have more questions, and thanks for using FixYa.
Posted on May 29, 2011
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Posted on Jan 02, 2017
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