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Thread: hard to start when hot

  1. #11
    Custom Tuner CMC Sponsor DynotuneMP's Avatar
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    SO you pumped it to 20 inch of vacuum and it dropped after 5 min? It should not have dropped at all
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  2. #12
    Registered User CMC Boss302 Coll Coll's Avatar
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    that is correct. i pulled the hose from the intake side and hooked it to my hand pumped it to 20, dropped slowly but consistently
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  3. #13
    Registered User CMC Boss302 Coll Coll's Avatar
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    i also primed the pump. pinched both the feed and return. pressure still drops but not quite as quickly
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  4. #14
    Registered User CMC Boss302 Coll Coll's Avatar
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    https://imgur.com/gallery/N0q20
    my garage door is evidence of the richness lol
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  5. #15
    Registered User CMC 302 Venomblue22's Avatar
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    Quote Originally Posted by DynotuneMP View Post
    So the old system was trying to deal with a crappy ground that was fixed after the new system was installed?
    Negative, I moved the battery at the same time I installed the system, After I moved the battery I ran a ground from the negative up to the drivers side motor mount on motor side, which apparently the prom didnt like, which was unterstandable, Chris logged in and showed me how all my sensor voltages were all over the place. He then told me never ground to a motor mount go directly to the block, so I did that, after i did that it purrrrred like a kitten!!!

    Thanks for the response above tho, That info I would have never known, I was just under the impression that it was start at that point and adjust from there!!

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