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New cat still glowing red.

1238 Views 8 Replies 3 Participants Last post by  beef tits
2001 Xterra, was loosing power and then the cat caught on fire. Changed the cat and it instantly is stilling getting hot and glowing red. Any suggestions on what it could be? Possibly and hopefully just a sensor allowing too much fuel output.
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The front driver side one was replaced. This Xterra does have 4 cats on it. Both oxygen sensors were replaced also.
It also sounds like it is sputtering and when you give it gas it is almost as if it wants to back fire.
The cat is actually unhooked from the exhaust at this moment.
Thanks, this homegirl will check those manifolds asap. I was hoping it was going to be something fairly simple. Thanks for all the advice.
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