Check Engine Light code question

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Old 09-22-2016, 06:20 PM
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Default Check Engine Light code question

This may be a dumb question, but is there a difference between clearing a code, and deleting one? I had my father in law bring his scanner over and erase 1 code (running lean) and a couple of days later it the check engine light came back on. I was under the impression that once you removed or deleted a certain code, it would no longer cause the CEL to come back on. Can someone please enlighten me?

Thanks

Last edited by Charlie Hustle; 09-22-2016 at 06:44 PM.
Old 09-22-2016, 06:40 PM
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If you just clear a code with a scanner it can come back. In order to permanently delete a code you have to run the tune out, delete the code in the pcm and reflash the new edited tune back in.
Old 09-22-2016, 06:43 PM
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Originally Posted by LSX Power Tuning
If you just clear a code with a scanner it can come back. In order to permanently delete a code you have to run the tune out, delete the code in the pcm and reflash the new edited tune back in.
Thank you for the info sir.



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