Finding Bank 1 O2 Sensor!


  #1  
Old 08-04-10, 06:06 PM
J
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Finding Bank 1 O2 Sensor!

I am trying to find the Bank 1 (upstream) O2 sensor on a 2003 Toyota Highlander V6. I know it is near the firewall, but should I be able to see it above or below the car? Left or right side (facing the car) maybe?

I just can't find it. Many thanks in advance.
 
  #2  
Old 08-04-10, 07:41 PM
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Upstream will be in front of the cat, bank one should be driver's side. I don't think it'll be hard to spot.
 
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Old 08-04-10, 07:57 PM
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Many thanks. I should be looking under the car then?
 
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Old 08-04-10, 08:11 PM
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B1 O2 sens

bank 1 O2 sensor is located in manifold close to firewall where pipe bolts to man. easiest seen from under car.
 
 

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