where are the oxygen sensors on a 2001 Mazda B4000?

2001 MAZDA TRUCK
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CEMERSON
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  • 1 POST
I can't find my Oxygen sensors for Bank 1. They are supposed to be off the manifold but I cant find them...before the catalytic converter.
Apr 3, 2006 at 9:43 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
Bank one is close to the engiine and is probably in the exhaust manifold. The other O2 sensor is just aft of the catalytic converter. They are the only thing screwed in the exhaust with wires connected.
Apr 3, 2006 at 10:17 AM
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