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Thread: Ongoing electrical problem - anyone want a challenge! ;-)

  1. #31
    Join Date
    Aug 2017
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    Quote Originally Posted by JPS Europa View Post
    As long as you have the wires hooked up, measure the resistance in that line.
    Do you mean the 12v? if so, that resistance was basically nothing. As far as I could tell, it's sound.

  2. #32
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    Jul 2009
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    Arkansas and . . .
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    Quote Originally Posted by JohnCh View Post
    Another thing to try -- and someone please correct me if this is a bad idea -- is to jump start the car.
    OK as long as the battery in the car being jump started isn’t a lithium ion.
    Last edited by xcarguy; 12-13-2017 at 01:33 PM.
    xcarguy

    http://www471.pair.com/stalkerv/gall...g2_itemId=5938

    Get up in the morning and give the day your very best. You donít get it back.

  3. #33
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    Aug 2017
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    I back probed the ECU cables. I used the ford green book wiring diagram to figure which was which. Tested them and learned that they go to their own cables that are attached to the battery. + and - have their own.

    If the - is disconnected, it doesn't affect the start, so it must be getting it's - connection some other way. The manual says there's more than one -

    I cranked it with the probes on a volt meter, and it dipped as low as 7.5v whether or not it started. As usual the no-start was caused by the AF gauge being powered up. Still don't know what's pulling it the ECU voltage down so low, but I've about reached my level of competence and am wondering if anyone can recommend a place in Atlanta that would take a look at it? Most mechanics panic if i mention kit car, so I'm looking for someone who might want to have a go.

    Thanks

  4. #34
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    Aug 2017
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    I changed the starter motor since that's been a recommendation elsewhere from another Caterham person saying a bad starter pulled so much juice that it reset the ECU on cranking. I wasnt very hopeful, and it made no difference.

    The problem appears to be getting worse. It's often failing to start with nothing connected now.

    So, if anyone knows a place in Atlanta i can bring it, I'm happy to hear your recommendations?

    thanks

  5. #35
    Join Date
    Nov 2010
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    NC
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    Wish I was closer

    Tom

  6. #36
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    Aug 2017
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    Well, I'm moving to Asheville in a few months, so I'll be a bit closer to you. If it's not fixed by then, I'll come by.

  7. #37
    Join Date
    Oct 2006
    Location
    Cincinnati
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    3,300

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    Lots of great se7ens roads near Ashville!
    '97 Caterham Super Sprint, 1700 Crossflow-sold
    '09 Birkin S3, Duratec-sold
    '03 Caterham Zetec track car

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