Question about 2001 Lexus RX 300
Try clearing the codes to see if they come back. If you have fixed the problem, the code won't come back. Else, this may be a connection issue or faulty wiring. Check your O2 sensor plug for corrosion or breaks and repair as necessary.
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Posted on Oct 30, 2011
Do you only have one o2 sensor? Many cars have two- one in front of catalyst, one behind. The front one is for fuel trim.
Also, that code is for the whole o2 circuit, right? Might need to keep checking. Does your car have a heated o2 sensor? Just another circuit to check, if so. good luck.
Looked at your post again. See where you said o2 sensors. Already changed both, huh? Wow. good luck. Might need a multimeter for resistance test of circuits.
Posted on Oct 29, 2011
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Posted on Jan 02, 2017
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