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Kyle N.
Kyle N., Toyota Technician
Category: Toyota
Satisfied Customers: 5229
Experience:  ASE Master Auto Technician, L1 certified, CA. Smog Lic.
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Bank 1 sensor 2 located on a 2001 toyota highlander v6 engine?

Customer Question

Where is the bank 1 sensor 2 located on a 2001 toyota highlander v6 engine?
Submitted: 6 years ago.
Category: Toyota
Expert:  Kyle N. replied 6 years ago.



The bank 1 sensor 2 is the secondary O2 sensor which is after the cat. converter in the exhaust. Usually if you replace the primary O2 sensor or Air/fuel ratio sensor in your case (bank 1 sensor 1) you'll fix the issue with the rear sensor. I wouldn't just replace both. Start with the first sensor then drive the car after clearing the code and see if you still get the bank 1 sensor 2 code.