|07-04-2013 02:30 PM|
|YJ1990rav||Alright cool, i will check that out. Thanks|
|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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|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?