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N20 320i Code 12B104 with CEL
| 09-16-2020, 12:25 PM | #1 |
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N20 320i Code 12B104 with CEL
Currently getting the Code 12B104 with a CEL light. Car runs fine just a check engine light. I clear the code and comes back after a few days. I am Catless with BM3 stage 1. Any ideas?
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| 09-16-2020, 02:52 PM | #2 |
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This is an o2 sensor code. Have you turned off cat monitoring with BM3 ?
Thats the only way to supress the CEL when wearing a catless downpipe. |
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| 09-16-2020, 07:13 PM | #3 | |
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| 09-18-2020, 08:01 PM | #4 | |
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FIXED IT
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| 09-18-2020, 08:03 PM | #5 | ||
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