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-   -   Fail smog/exhaust leaks? (http://www.wranglerforum.com/f19/fail-smog-exhaust-leaks-253612.html)

YJ1990rav 07-04-2013 02:01 PM

Fail smog/exhaust leaks?
 
I have a 1990 yj 2.5L and i failed my smog, excessive NO almost triple the max amount. I found 2 exhaust leaks. One under the manifold right below the o2 sensor and another just before the cat where i welded the bracket for the pipe. Can this cause me to fail smog solely or is it my cat also?

jokerchief462 07-04-2013 02:27 PM

Yes an exhaust leak with a bad reading by an O2 sensor will cause problems.

This is an excellent website with great info and will help you out.

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YJ1990rav 07-04-2013 02:30 PM

Alright cool, i will check that out. Thanks


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