Air fuel upstream sensors

2003 TOYOTA HIGHLANDER
170,000 MILES • 3.0L • 6 CYL • AUTOMATIC
Avatar
MICHELEOGDEN
  • MEMBER
  • 1 POST
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 1:05 AM
Avatar
BMDOUBLE
  • ✓Experienced Mechanic
  • 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.
Image (Click to enlarge)
Attached Media
Aug 14, 2019 at 6:53 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle