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Old 12-06-2018, 08:21 AM   #1
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P0420

I keep getting an off and on P0420 code. I want to data log the upstream and downstream O2 sensors to see if my cat has failed before I replace it. Does anyone know the parameters to select in SCT livelinks?


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Old 12-06-2018, 07:34 PM   #2
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I can help with that , whos Tune do you have

P0420 may just be a bad rear o2 sensor , that doesnt mean a bad CAT , actually its rare for that code to mean a bad CAT

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Old 12-06-2018, 10:03 PM   #3
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ive read where it could be the purge valve recall mostly if you open the hood and look near the battery you can hear it clicking non stop i think tom meant p0420 but he likes to sell tunes so he wont mention a recall for purge valve

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Old 12-06-2018, 10:28 PM   #4
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i like to know the truth i dont need any sorcerers charging me 460 and its still broke check purge valve and check for recall
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Old 12-07-2018, 03:41 PM   #5
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Originally Posted by Garland15949 View Post
ive read where it could be the purge valve recall mostly if you open the hood and look near the battery you can hear it clicking non stop i think tom meant p0420 but he likes to sell tunes so he wont mention a recall for purge valve
The recall has nothing to do with the rear o2 sensor , that would be the front o2 sensor that would be effected by the purge valve / gas tank recall and why I didnt mention it , Where did I mention anything about selling him anything ?

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Old 12-07-2018, 03:47 PM   #6
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i like to know the truth i dont need any sorcerers charging me 460 and its still broke check purge valve and check for recall
I dont do sorcery Tuning I do Custom Tuning and I offered to help , its up to you if you want the help or go with the misinformation above

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