Trouble starting after engine is hot

Discussion in 'General Tech' started by Austinx56, Oct 5, 2019.

  1. Austinx56

    Austinx56 Well-Known Member

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    So it fires up cold fine but sometimes takes like 7 seconds with the key turned to fire up?
    Replaced plugs wires, new dizzy, new starter, replaced coolant temp sensor, thermostat... car sits a lot.


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  2. ttocs

    ttocs Legend

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    any way to check fuel pressure?
     
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  3. Austinx56

    Austinx56 Well-Known Member

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    Oh should have mentioned I upgraded the injectors


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  4. Austinx56

    Austinx56 Well-Known Member

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    Yeah I had a leaking injector and it would be hard to start, had to give it some gas but now it seems
    Something electrical


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  5. ttocs

    ttocs Legend

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    upgraded like you had 19 lb and now have 24? Or just replaced/upgraded? If you switched the lb rating on the injectors did you get a tune or at the least a weighted maf?
     
  6. Austinx56

    Austinx56 Well-Known Member

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    Yes 24 and tuned and all
    It fires up in half a second cold, but still giving me trouble hot... maybe tfi module?


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  7. ttocs

    ttocs Legend

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    it could be any number of things from the fuel pump getting hot and not supplying as much to the standard dizzy/tfi issues. I was having exactly the opposite problem and figured it out to be the voltage was dipping JUST below the threshold it needed to be at to start and it took a while to find/figure out. Still not sure I have it fixed really....