oxygen sensor bung leak

  1. K

    Help P1151

    okay so I’ve owned this mustang for about 6 months now and I’ve been driving it with the check engine light on for o2 sensors code. (The originals h pipe with cats were taken out for no cats) I recently got 2 new o2 sensors for the front of the exhuast and used the old sensors for the back, but...
    • Kowalski224
    • Thread
    • emissions engine control module evap fuel fuse help no cats o2 oxygen sensors harness a9l a9p o2 sensors oxygen sensor bung leak
    • Replies: 1
    • Forum: SN95 V6 Mustang Tech
  2. fredfifty

    Exhaust Leak At O2 Bung

    Whats up with this....is oily fluid (perhaps condensation and grease or something) leaking from what looks like the base of the O2 sensor bung, normal? Im gathering the bung needs to be re-done. But is the oily crap coming out of it normal? Its just the driver side. Whats the diagnosis guys...
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