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No, it will not pass the smog test with a defective or removed O2 sensor.

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16y ago

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What are symptoms of bad O2 sensor in 1998 expedition?

There are many symptoms of a bad O2 sensor. Some are poor fuel efficiency, flashing check engine light, the failure to pass a smog test, and rough idling.


What can cause a 1995 Honda civic to fail smog replaced catalytic converter o2 sensor and had a tune up done.?

If the vehicle has excessive miles it may be burning oil, If you are sure it is in OK condition to pass the test, Try this, drive the vehicle at highway speed for atleast 10 miles, this will get the emissions system up to full operating condition, and make it reduce smog at its max.


Is it possible to gut out a cat converter and bypass the rear o2 sensor with a resistor making it send a fake signal and everything else work fine with the other o2 sensor and get the correct mixture?

Providing that the vehicle does not have to pass an emissions test


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