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o2 heater monitor

  1. O2 Heater Monitor?

    F150 Ecoboost Problems
    Can anyone tell me what an O2 Heater Monitor Bank 3 - Sensor 4 is? And what it affects? Mode $06 data shows both the O2 Heater Monitor Bank 3 - Sensor 4 and Bank 4 - Sensor 2 are failing. Truck is idling rough and feels sluggish. MPG has dropped as well. All this after 2nd misfire issue at...
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