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BMW 3-Series (E90 E92) Forum
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N54 335i o2 sensor heater circuit
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| 05-16-2024, 09:44 AM | #1 |
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N54 335i o2 sensor heater circuit
Cars throwing codes for all 4 o2 heater circuits at the same time. Already replaced the fuse in glove box. Trying to exercise all options before I replace the o2 sensors themselves. Thanks
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