Stock Problems/Issues Discussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Clubman (R55), Cooper and Cooper S(R56), and Cabrio (R57).

Cat temps soaring!

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Old 10-14-2017, 09:49 AM
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Cat temps soaring!

Anyone know what the operating temp range for our cats? I measured 1100 degrees yesterday after a casual 30-40 min highway drive and some in town errands. I’m starting to think it has failed.
 
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Old 10-14-2017, 09:53 AM
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Nope, sounds about right. I've seen much higher during longer highway cruising.
 
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Old 10-14-2017, 01:57 PM
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Thanks! Just wanted to make sure.
 
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Old 10-14-2017, 03:13 PM
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You wouldn’t happen to know the specified acceptable voltage range of the downstream O2 sensor would you? Mine is constantly reading .750- .800 which seems rich to me.
 




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