Strange electrical problem

Discussion in 'General Motoring' started by Stan, Jan 13, 2008.

  1. Stan

    Stan Guest

    I have a 2002 Honda civic dx. As the engine is revved up, the lights dim
    and the heater fan output actually decreases. This happens whether the car
    is driven or at a stand still and the engine is revved. Alternator belt is
    tight, battery post are clean. Can anyone suggest what the problem might be.
     
    Stan, Jan 13, 2008
    #1
  2. Stan

    Michael Guest

    I don't know the problem, but I have the same thing in a 1998 CRV. Honda
    must be doing something weird.
     
    Michael, Jan 14, 2008
    #2
  3. Stan

    Michael Guest

    I don't know the problem, but I have the same thing in a 1998 CRV. Honda
    must be doing something weird.
     
    Michael, Jan 14, 2008
    #3
  4. Stan

    Michael Guest

    I don't know the problem, but I have the same thing in a 1998 CRV. Honda
    must be doing something weird.
     
    Michael, Jan 14, 2008
    #4
  5. Stan

    motsco_ Guest

    --------------------

    The belts on newer cars need to be WAY tight compared to 30 years ago.
    Search for 'honda ELD' to understand a lot more. Try www.tegger.com and
    search there.

    'Curly'
     
    motsco_, Jan 14, 2008
    #5
  6. Stan

    motsco_ Guest

    --------------------

    The belts on newer cars need to be WAY tight compared to 30 years ago.
    Search for 'honda ELD' to understand a lot more. Try www.tegger.com and
    search there.

    'Curly'
     
    motsco_, Jan 14, 2008
    #6
  7. Stan

    motsco_ Guest

    --------------------

    The belts on newer cars need to be WAY tight compared to 30 years ago.
    Search for 'honda ELD' to understand a lot more. Try www.tegger.com and
    search there.

    'Curly'
     
    motsco_, Jan 14, 2008
    #7
  8. Stan

    Tony Harding Guest

    What the hell is it with this crap - it's all over the NG?
     
    Tony Harding, Jan 16, 2008
    #8
  9. Stan

    Tony Harding Guest

    What the hell is it with this crap - it's all over the NG?
     
    Tony Harding, Jan 16, 2008
    #9
  10. Stan

    Tony Harding Guest

    What the hell is it with this crap - it's all over the NG?
     
    Tony Harding, Jan 16, 2008
    #10
  11. Stan

    bi241 Guest

    It seems like your engine electrical lives off the battery when that
    happens. You can do a quick and simple test with a multimeter. A
    working charging system should read at least 13.5V (but no more than
    14.5V) when the engine is running. If not then it may be a bad voltage
    regulator, a faulty rectifying diode pack, or a bad ELD sensor.

    i have no experience with ELD system. i only know that in newer
    Hondas, the ECU turns off the charging system whenever it deems
    neccessary to reduce load on the engine and therefore to conserve
    fuel. In your case a bad ELD sensor may be the culprit. Do you see
    the "Check Engine" light on?
     
    bi241, Jan 19, 2008
    #11
  12. Stan

    bi241 Guest

    It seems like your engine electrical lives off the battery when that
    happens. You can do a quick and simple test with a multimeter. A
    working charging system should read at least 13.5V (but no more than
    14.5V) when the engine is running. If not then it may be a bad voltage
    regulator, a faulty rectifying diode pack, or a bad ELD sensor.

    i have no experience with ELD system. i only know that in newer
    Hondas, the ECU turns off the charging system whenever it deems
    neccessary to reduce load on the engine and therefore to conserve
    fuel. In your case a bad ELD sensor may be the culprit. Do you see
    the "Check Engine" light on?
     
    bi241, Jan 19, 2008
    #12
  13. Stan

    bi241 Guest

    It seems like your engine electrical lives off the battery when that
    happens. You can do a quick and simple test with a multimeter. A
    working charging system should read at least 13.5V (but no more than
    14.5V) when the engine is running. If not then it may be a bad voltage
    regulator, a faulty rectifying diode pack, or a bad ELD sensor.

    i have no experience with ELD system. i only know that in newer
    Hondas, the ECU turns off the charging system whenever it deems
    neccessary to reduce load on the engine and therefore to conserve
    fuel. In your case a bad ELD sensor may be the culprit. Do you see
    the "Check Engine" light on?
     
    bi241, Jan 19, 2008
    #13
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