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Discussion Starter · #1 ·
Hey guys, so in 2 occasions my car has shown me a faulty headlamp unit message on the dash. After it goes away it throws the little i icon on the dash along with the check engine light. I check the code and nothing comes up, just code P0420 which I know is there because of my catless DP. But it now shows ECU- engine control unit DTC's .does anyone know what it might be?

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Discussion Starter · #3 ·
Both my headlights work just fine. How ever I did notice the led eyebrow on the driver side flickers every now and then. Could that throw the cel?

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