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Discussion Starter · #1 ·
This is Logan D, still trying to figure out why my jeep is running so bad. It might be the o2 sensor but I cannot get the darn thing out!! Does anyone think it could be my catalytic converter? Some dude suggested that to me today.
 

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Could be the cat, you should test it before buying a new one. Tap it with a mallet, listen for internal rattles. also measure the inlet and outlet temps with a infared gun. Outlet temp should be higher than inlet temp.
 
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