Civic 3-stage vtec D15B "econo mode" not working

Discussion in 'Car Talk' started by Civicbob, Oct 24, 2019.

  1. Civicbob

    Civicbob Senior Member
    Senior Member

    Joined:
    Jan 24, 2007
    Messages:
    5
    Likes Received:
    0
    My car CEL seems to come on when the car is about to switch to lean burn mode, so the ECONO light on the dash does not illuminate. Tailpipe is sooty black and fuel consumption is increased.
     
  2. Izso

    Izso Boooooossst
    Helmet Clan Moderator

    Joined:
    Mar 28, 2004
    Messages:
    14,633
    Likes Received:
    6,201
    Pretty much sounds like a dead O2 sensor
     
  3. Civicbob

    Civicbob Senior Member
    Senior Member

    Joined:
    Jan 24, 2007
    Messages:
    5
    Likes Received:
    0
    Ouch! This is a new O2 sensor (NTK) installed about month ago
     
  4. vr2turbo

    vr2turbo 5 Year | Silver
    Helmet Clan Moderator

    Joined:
    May 11, 2010
    Messages:
    29,114
    Likes Received:
    8,146
    Cannot check with OBD2?
     
  5. Izso

    Izso Boooooossst
    Helmet Clan Moderator

    Joined:
    Mar 28, 2004
    Messages:
    14,633
    Likes Received:
    6,201
    If it's new - then you might have an issue with the distributor/coilpacks.
     
  6. Civicbob

    Civicbob Senior Member
    Senior Member

    Joined:
    Jan 24, 2007
    Messages:
    5
    Likes Received:
    0
    Odd thing happened, was low on fuel on two occasions and the econco light came on for about 15 secs. before CEL light came back on.
     

Share This Page