1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

idle surges when headlights on???

Discussion in 'Civic and del Sol - EG and EK' started by vtec_me, Sep 29, 2008.

  1. vtec_me

    vtec_me New Member

    Messages:
    43
    Likes Received:
    1
    Joined:
    Jun 18, 2008
    Location:
    arkansas
    I just picked up a eg hatch, and found out that when ever i turn on the headlight my idle surges, but when its off it does not do it. does anyone know whats up? could it be poor ground or battery?
     
  2. Justin66

    Justin66 The Hondaswap Canadian

    Messages:
    1,442
    Likes Received:
    24
    Joined:
    Dec 25, 2007
    Location:
    Peterborough, Ontario
    Maybe give that a check. Your Idle Air Control Valve (IACV) might not be working right. Does this happen when you turn on anything else (defogger, A/C) ?
     
  3. EGDriver93

    EGDriver93 New Member

    Messages:
    55
    Likes Received:
    3
    Joined:
    Sep 27, 2008
    A grounding kit took care of my surges. Also try cleaning out your throttle body. Helps a bit. Prob your IACV though.
     
  4. George777

    George777 ^^ Likes Bewbies

    Messages:
    2,917
    Likes Received:
    61
    Joined:
    Aug 17, 2005
    Location:
    With your mom
    One of your wires could be exposed too, so when you turn the lights on it reacts with something else or grounds out. It wouldn't hurt to trace the wires and make sure there aren't any exposed parts.
     
  5. JdMsoles

    JdMsoles New Member

    Messages:
    10
    Likes Received:
    0
    Joined:
    Jan 1, 2008
    i would just check the battery if its below 12.4 volts then your going to have problems where things start acting up like that just check that first before doing anything else and make sure ground to battery is clean of rust or anything i don't think its the iacv, should be around 4.5v no more .5volts GL!
     
  6. fijitec

    fijitec New Member

    Messages:
    24
    Likes Received:
    0
    Joined:
    Jan 3, 2007
    is this problem solved..?
     
  7. vtec_me

    vtec_me New Member

    Messages:
    43
    Likes Received:
    1
    Joined:
    Jun 18, 2008
    Location:
    arkansas
    no not solved yet still doing this i havent checked my iac valve yet, but when its cold it surges pretty bad too drops almost to 400-300 and goes back to 1100 last time i check battery was at 11.8 ill clean off my grounds and see waht happens
     
  8. eg'sforlife

    eg'sforlife New Member

    Messages:
    985
    Likes Received:
    39
    Joined:
    Oct 22, 2008
    Location:
    29 stumps, CA
    it still sounds like a grounding problem like your lights are grounding off something i had this problem once and my grounding wire for my light was corroded but its looked fine just looking
     
  9. prpprimo

    prpprimo Hondaholic

    Messages:
    217
    Likes Received:
    3
    Joined:
    Jun 8, 2008
    Location:
    ABQ
    Check the output voltage from your alternator. It should be around 13.5 to 14.3 volts. (you should be able to do this with a basic multi meter or bring it to a local auto parts store that offers free diagnosis)The symptom your describing sounds like a charging issue. Most all components are designed to run off a full 12 volts. If it falls below that, it can affect the engine idle circuit.

    It is similar to jump starting another car that has a dead/weak battery. Once the cables are connected, you will notice the engine in the car delivering the charge decrease RPM's to compensate the load.
     
  10. phyregod

    phyregod !!YTINASNI

    Messages:
    9,449
    Likes Received:
    225
    Joined:
    Jun 11, 2005
    Location:
    Central Texas
    ^^ That would be my first guess. Weak alternator. Next would be the ground thing.
     
Verification:
Draft saved Draft deleted

Share This Page