Seller notes

If you have downpipes and want to remove the check engine (SES) light & set readiness, or are troubleshoot faulty O2 sensors, then you need one of these for your N54. Assemblies are engineered & manufactured to exceed BMW electronic specifications. Each finished Assembly is load tested per AEC-Q200 and hand assembled by a trained technician. The DP Fix harness is plug and play for all models that came with the N54 engine. Don't be fooled by other sellers with a similar harness, it has failed me ...

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