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!10 volts at coils

This is a discussion on !10 volts at coils within the General Help forums, part of the LSx Technical Help Section category; I have had a gremlin in side my car. It still wont start but i did find I only have ...

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    !10 volts at coils

    I have had a gremlin in side my car. It still wont start but i did find I only have 10 volts at my coils (pink wire) Can any one tell me what might cause that ?
    Thanks

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    Smiles for 9.5 Years cammed goat's Avatar
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    Possibly a bad ground? Others will come in and tell you where your grounding points are. Have you checked your battery?

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    high resistance. check for loose battery connections,grounds,spread terminals etc.

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    battery is up
    I just pulled the whole wiring harness I am just making sure its good
    And for some reason I thought I had more grounds off the harness

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    Smiles for 9.5 Years cammed goat's Avatar
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    OK. So far seems everything is tight and clean. I didn't know if you had a Delco battery in your car as every F-body I have replaced batteries on, the Delco's negative terminal has come out in my hand.

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    Well its not an F-body it's a Datsun 240 Z but I did have the same thing happen to me with the battery.
    The car I did all the work on and for the last 5 years has been a great car. About 6 months ago it would miss a bit and die . Start it up and drive it like nothing happened . Then one day it just crapped out . So i found I wasn't getting any voltage to my crank sensor . I bought a ECM for about 100 dollars edited and with a 1 yr. warranty . Put it in and it fires right up . But I couldn't get it to learn itself . So it throws a code for the crank sensor. I replace it and now nada . I'm like WTF so I find a wire broken in the harness so I go from the ECM to the sensor .All new wires now I get nothing and thats when I found the 10 volts at the coils. Its been a real pain in my ass LOL

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    Smiles for 9.5 Years cammed goat's Avatar
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    Hmmm...this is interesting. If all the grounds are tight, clean and present, then I dunno what else the problem could be. I am thinking you may need another ground.

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    well i put it all back together and it popped ...but i had to take a break

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    well I'm done for today but get this I push or pull on the crank sensor and my fuel pump goes on and off and it started but ran for about 3 minutes good then died. Its like the 4th crank sensor I have tried. Do the sending ring on the crank go out ?

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