| 04-10-2024, 09:43 PM | #1 |
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Drives: BMW F10
Join Date: Jun 2019
Location: San Diego
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Jb4 Check Engine Light
Has anyone installed a JB4 tuner and got this code? Error code 121002
Error description: Boost pressure sensor, electrical: short circuit to ground I disconnected battery per instructions… I replaced both Map Sensors, but the code comes right back. 2019 X5 X40i |
| 04-17-2024, 12:39 PM | #2 |
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Drives: 2020 G05 40i M-Sport 2023 330i
Join Date: Mar 2019
Location: Los Angeles
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Check the pins in the plug to see if you bent one possibly:
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F10 M5 AlpineWhite/SakhirOrange[DCT]
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