P0302 misfire, can't fix it

Discussion in 'Engine Performance + Maintenance' started by Cheyenne, Jun 9, 2018.

  1. BOTTLEDZ28

    BOTTLEDZ28 I'm Awesome

    Messages:
    842
    Likes Received:
    9
    Joined:
    Nov 29, 2011
    Location:
    Mass
    Does anyone know how many misfire counts it take in a certain time frame to trigger the light for a P03XX coed or even a flashing check engine light?
     
  2. Cheyenne

    Cheyenne OBS Enthusiast

    Messages:
    71
    Likes Received:
    13
    Joined:
    Sep 7, 2017
    Location:
    Canada
    You'll want to start a new thread probably for that
     
  3. Supercharged111

    Supercharged111 I'm Awesome

    Age:
    35
    Messages:
    1,757
    Likes Received:
    670
    Joined:
    Aug 20, 2015
    Can it be user defined in the tune?
     
  4. BOTTLEDZ28

    BOTTLEDZ28 I'm Awesome

    Messages:
    842
    Likes Received:
    9
    Joined:
    Nov 29, 2011
    Location:
    Mass
    AKAIK, it can only be turned on or off.
     
  5. Schurkey

    Schurkey OBS Enthusiast

    Messages:
    67
    Likes Received:
    26
    Joined:
    Jan 14, 2018
    Location:
    The Seasonally Frozen Wastelands
    A flashing MIL is warning of catalyst damage.

    If it's flashing, you'd best be paying attention.
     
    Knuckle Dragger likes this.
  6. Supercharged111

    Supercharged111 I'm Awesome

    Age:
    35
    Messages:
    1,757
    Likes Received:
    670
    Joined:
    Aug 20, 2015
    Uhh, no, flashing MIL is for a misfire. Besides, how can one damage a catalyst that doesn't exist?
     
  7. Knuckle Dragger

    Knuckle Dragger I'm Awesome

    Age:
    50
    Messages:
    140
    Likes Received:
    35
    Joined:
    Feb 7, 2014
    Location:
    Waddell AZ

    No he's right . The MIL will flash if a condition is present that can damage the converter. The software doesn't care if you took the converter out, it determines there is a condition severe enough to damage the cat and flashes the MIL.
     

Share This Page