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Misfire, tough idle - fuel injector issue? Misfire, tough idle - fuel injector issue?
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Old 11-25-2018, 12:30 PM
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Here are the photos related to Fuel Trim readings. Does the code "OL_Fault" on "Fuel system 1 status" and "Fuel system 2 status" mean "over low?" I have no clue on how to interpret the reading code and numbers.

Does anyone knows the meaning? Thank you.
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Old 11-25-2018, 01:01 PM
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Checked online. Fuel system status reading of OL_Fault means open loop fault. Is this something related to O2 sensor?
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Old 12-09-2018, 10:29 AM
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As I have ran out of options in resolving this P0306 problem, the car was sent to my local BMW dealer for expert diagnosis. The car came back early last week and has been running fine. I was told that they repaired the #6 injection wires.
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