Question about 1994 Chevrolet Astro

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1994 chevy astro van awd

My van is throwing too much gas and is fowling the plugs, and wont start.
however i am getting spark, and if i pull the plugs and clean them, it trys
to start but runs rough and blows black smoke, until i reach 3/4 throttle
then clears out, but then dies when i let off the gas.
i have changed map sensor, cap,rotor,plugs,wires, and still same symptoms.
please help

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  • duhlyla Oct 22, 2008

    yes

  • duhlyla Oct 22, 2008

    fuel pressure holds fine after i shut it off, and it seems to be fouling all plugs evenly

  • alextm Jan 15, 2009

    What is the problem when no fuel is going into the carb from the injector but the fuel pump is pumping the fuel to the injector sometimes it will and sometimes not work..Is it the injector or a sensor?

  • kelvin smotherman May 11, 2010

    is it a 4.3 vortex

  • Anonymous Mar 20, 2014

    ive replacethe the icm and cap an rotor an wires but it still is doing the same thing

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I have 1994 astro van 2 wd. i had to hot wire it because of ignition problems now it won't shift pass 2nd gear how do i get power to transmision.

Posted on Aug 23, 2009

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Underneth the intake manold is were your fuel injector poppet nozzles are, more than likely the fuel line hose that goes thru the back of the intake is split and leaking fuel underneth the intake manifold if you check the fuel pressure you will find that the fuel pressure will drop down to 0 psi as soon as the fuel pump shuts off and it should hold pressure

Posted on Oct 22, 2008

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