Question about Cars & Trucks
Posted by Anonymous on
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Posted on Jan 02, 2017
Need to replace your cat converter. You can do it if you are mechanically inclined. But, most likely will need to be taken to someone with a lift. Yes it will be expensive. Look at $500-1000.
Posted on Mar 16, 2009
That's a pretty RELIABLE code!... You have a bad CAT (Catalytic Converter). Trust it to be accurate. The conditions which set this code is when the Upstream O2 sensor's data/signal is compared to the Downstream sensor's data/signal... when they are nearly identical, that's when this code is set (unless you have an exhaust leak).. If there is an exhaust leak.. repair it, then retest/recheck.
Posted on May 31, 2009
you may have a bad converter, its not cleaning the exhaust, but on the other hand a bad rear o2 sensor can also cause this problem,there is a wat to test but you would need a scan tool or scope,replace the other sensor, if light returns then replace the converter, no money lost, if you were to replace the converter the o2 sensors should also be replaced. you have 165000 miles it would be crazy not to replace sensor and install new cat, so basically your just doing it in 2 steps and may get lucky and not need a cat. good luck.
Posted on Mar 05, 2010
Testimonial: "Your information is exactly what I needed to know.I suppose I just did not want to spend the money for a cat. converter. Thanks again for your help. "
9 times out of then this points to bad cat and the cat will need be changed.
Other things that can cause this code are an exhaust leak before the front 02 sensor or the car in need a of a tuneup badly. Generally if this problem is sensor related you would have other codes also.
If you want to know of the cat is bad the computer stores data and when you have a data scanner that can access MODE 6 the data can indicate whether your cat is the issue or not. Its a bummer you have to have this diagnosed by a professioal to get this data since the scanners do not get loaned out.
I have heard of alot of cats that were replaced for no reason because of other reasons so be cautious on how to address this because your not going to be able diagnose this without a data scanner and all the specifications for the sensors.
Posted on Mar 30, 2010
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