O2 sensors not passing smog
4 Answers
Why exactly won't it pass?
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The smog guy says that the oxygen sensor is not complete.
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Do I need to drive it more? I figured 550 miles should have been enough
Take it somewhere and get the actual code so you know what's failing. Be sure you have the correct O2 sensors installed, they need to be specifically for that vehicle, for example you can't just use sensors for any Dodge Ram. Some sensors are heated some are not, and the circuit needs to be working.
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