Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
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JDL
AUTOMOTIVE REPAIR CONTRIBUTOR
16,098 POSTS
The primary 02 sensor should be in the exhaust before the cat.
Feb 19, 2014 at 8:34 AM
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HONDATECH1983
AUTOMOTIVE REPAIR CONTRIBUTOR
109 POSTS
It is located just before the catalytic converter.