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Backfiring issue

Discussion in 'SN-95 and New Edge Mustangs' started by egsvt98, Aug 19, 2017.

  1. egsvt98

    egsvt98 New Member

    Messages:
    12
    Joined:
    Feb 24, 2012
    Location:
    ottsville
    ok I'm at a loss here so maybe you guys can throw some ideas at me. I have an 03 gt has trickflow heads, CMS stage 3 cams with accel 24/lb injectors. At WOT car runs great but regular driving under load in 4th gear the car starts bogging and backfiring out of the exhaust but once you put your foot down it goes away just changed plugs with ford plugs. I have msd COP and they only have about 800 miles on them. I'm at a loss any ideas?
     
  2. Sluggie24

    Sluggie24 Active Member Established Member

    Messages:
    184
    Joined:
    Jan 12, 2017
    Do you have the ability to data log?
     
  3. Coyote-SVT

    Coyote-SVT New Member Established Member

    Messages:
    10
    Joined:
    Jan 5, 2018
    Location:
    KY
    I had a 95 Gt that would do that exact thing and it ended up being a bad O2 sensor

    Sent from my SAMSUNG-SM-G890A using Tapatalk
     

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