Check Engine Light

Discussion in '96-04 - 2V Specific' started by 19mustang95, Sep 3, 2006.

  1. 19mustang95

    19mustang95 Legend

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    I just pulled the codes out of my car and i had one P0402, EGR excessive Flow and one P0171, System too Lean bank one. I have been told to replace the DBFE to fix the P0402, but i have no clue what to do about the being too lean one. Anyone have some suggestions? And what exaclty is a DBFE?
     
  2. 97gtconv.

    97gtconv. Member

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    the DPFE ( delta pressure feedback sensor EGR) measures the amount of EGR gasses flowing into the intake. how's the driving quality? injector that can't flow well, to a bad 02 sensor, to a bad egr, or even a vaccum leak.
     
  3. jpajkos

    jpajkos Active Member

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    If your running lean on bank one 80% of the time o2's. My buddy after install his MAC catback came up with a code for bank 1 and 2. We replaced the o2's and the code went away.
     
  4. Foster98GT

    Foster98GT Well-Known Member

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    Is there a way too use some sort of a jump wire too pull codes on our cars?
     
  5. 97gtconv.

    97gtconv. Member

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    you'll need a scanner. you can go to autozone and have your car scanned for free.
     
  6. 19mustang95

    19mustang95 Legend

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    the drvign quality is great, it feels jst as strong as the first day i bought it 9 months ago. im gonna replace the O2 sensor in a couple days as well as the DPFE.