Question about 1991 Honda Civic

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Fuel pump if the fuel pump turns on can it still be bad and make the car not start

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  • Steve Nordquist
    Steve Nordquist May 11, 2010

    That's so.  Once you've checked for line obstructions at the

    • tank sump, (hooray for LEDs and saran-wrap baffles!...or curly hanger-wire feelers)

    • pump inlet,

    • etc.
    and established that 9-14psi are making it to the pre-FI-header(if relevant) filter, using a sophisticated pressure gage (or appropriate tubing and 2 rubbers (1 for relative pressure balance) in a clampable clear box)
    then you get to look at the log from the F/I computer (as relevant) to find bad injectors or sticky valves (engine or F/I.)

    Keep some baking powder around to **** up loose gas, until you are ready to close things up.  Stay safe from fire and carcinogenic gasoline.

  • Anonymous Mar 14, 2014

    car wont start dealer said it a bad pcm not sending signal to fuel pump or ignition



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  • 46 Answers

Most likely not but it can be posible so the best way to check is to disconect line then turn over switch and check for steady flow or see if ur fuel bar has presure if so then it probally isnt ur fuel pump more likely ur spark

Posted on Jul 08, 2008


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