Air fuel upstream sensors

2003 TOYOTA HIGHLANDER
170,000 MILES • 3.0L • 6 CYL • AUTOMATIC
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MICHELEOGDEN
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I know this car has two upstream oxygen sensors. Are both of them air fuel sensors? I am throwing a code for bank 2 sensor 1 and know it is a air fuel sensor. Is bank 1 sensor 1 also them same or can I use a regular oxygen sensor in there if there is no code?
Aug 14, 2019 at 8:05 AM
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BMDOUBLE
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  • 1,139 POSTS
Sensors 11, 21 are the same type of sensor. Do not use any other type of sensor. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Aug 14, 2019 at 1:53 PM