Camry :: O2 Sensor Replaced / Catalytic Not Performing Right


Nov 24, 2011

5 months ago I replaced the O2 sensor on the upper part. Now getting a reading that the Catalytic is not performing right. Is there another sensor that could be bad or the one i replaced is bad? Or is there a way to clean out ?

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The problem is when you turn the thermostat control to hot on the HVAC dial only warm air blows and it is only warm when the engine is revved or going down the road.

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Ford - Escape :: 2004 - Check Engine Light / Catalytic Convertor Needs To Be Replaced

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I've been having issues with my car, i took it to Orielly's & they ran diagnostics, one of the codes said a recommended fix was replace the MAF sensor. Today I took it by an auto shop for them to look at, and the guy said it was my catalytic converter, and I mentioned the MAF sensor, he said fixing the CC would take care of the MAF sensor malfunction. So I have a couple questions...

1. Is what he said correct?
2. If you have a bad CC, does it ever NOT smell bad?

Bc I've never smelled anything other than stinky exhaust, never any rotten egg smell.

It's a 98 Nissan Maxima, 6 cyl. it has 265K miles.

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I just failed inspection because check engine light is on. The codes state that catalytic converter and O2 sensor are "not ready". I understand it has to do with the computer but not much else. Someone on Mazda 6 message board provided a complicated sequence of driving instructions including maintaining various speeds and RPMs for specific lengths of time which they said would reset the computer. My mechanic is at a loss. This car is a lemon and I would just like to get the inspection done so I can trade it in and get something that doesn't keep breaking.

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I just had an OBD code pulled on my 2010 Camry and it turns out that my Heated O2 sensor for Bank 1 Sensor 2 is failing. I'd rather do this myself if I can but I can't figure out where this thing is. Is this something I can access myself and swap out? Or does this need to be fixed by a mechanic?

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When I pulled off the passenger side wheel and access cover, I noticed the remains of the belt were stuck behind the harmonic balancer, I tugged on it with about 5 pounds of force, and the entire pulley fell off of the harmonic balancer. I'm not sure if the belt stacked up behind and pushed it off, or if it just went bad, but the rubber between the portion that connects to the crank and the pulley was ripped, and missing in some spots. I replaced the harmonic balancer, and both belts, good to go, everything is running fine.

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1. Fuse
2. Tone wheel cracked/broken
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