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Phantom codes from my OBD2 reader are a real headache.
They lead me on wild goose chases. It's frustrating when the fix is something simple.
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dylan_sanchez3d ago
Used to write off phantom codes as random nonsense. Learned they're usually a sign of a weak connection or a bad ground. Now I treat them as a legit clue to start checking wiring.
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abby_martinez3d ago
Read an article once that called bad grounds the most common ghost in the machine. @xena582's story about the loose wire proves the point pretty well. Turns out cars really hate it when the electricity gets lost.
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xena5823d ago
On my 2008 Focus, phantom codes like P0171 would pop up weekly, and I used to just clear them hoping it was a fluke. Your point about bad grounds made me check the battery terminals and engine block ground. I found the ground wire was loose and dirty, so I fixed it. Now the codes are gone for good.
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