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| Forum name | Performance/Engine |
| Topic subject | What the hell is the code 72 ????? |
| Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=26469 |
26469, What the hell is the code 72 ?????
Posted by obregonmanuel, Jul-02-02 08:07 AM
What the hell refers the PCM code number 72? I can´t find the corresponding failure.
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26470, RE: What the hell is the code 72 ?????
Posted by DarkOne, Jul-02-02 08:26 AM
Have you gutted your cat by any chance?
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26471, RE: What the hell is the code 72 ?????
Posted by BlackVenge, Jul-02-02 09:01 AM
catalytic converter efficiency(sp) failure. i had the same code and replaced mine, just passed emissions with it too.
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26472, RE: What the hell is the code 72 ?????
Posted by Dave_FL, Jul-02-02 11:41 AM
So mine finally figured out I have no cat. It took my car 4-5 months to figure it out...My car is dumb..LoL
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26473, RE: What the hell is the code 72 ?????
Posted by kllri4, Jul-02-02 02:51 PM
It's not telling you that you don't have a cat. It's telling you that your oxygen sensor in bank one (upstream) is bad. I had that 72 code with no cat then I changed the O2 sensor and now it's gone. Just replace the sensor.
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26474, RE: What the hell is the code 72 ?????
Posted by mcgyvr, Jul-03-02 12:57 AM
^^ not necessarily, it could be the downstream one also, if the second doesnt agree with the first you will get the cat error.
if you dont have a cat you should do this http://www2.cesa12.k12.wi.us/brent/personal/neon/pic/cat_resistor.html
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