Question about 1993 Pontiac Firebird

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93 firebird formula wont start

I have changed distributor cap and rotor,wires,plugs,ful filter,cat converter,also did compresion check,fuel presure check,still just cranks but wont start

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  • Anonymous Apr 24, 2009

    i have a 93 firebird its not getting fuel or fire..it has a MSD distributor, street fire coil, AC delco ICM, new wires and plugs ..its in time,..all connetions are good, all fuses are good..i wounder if the computer is bad??..it does not have a theft system..could there be something shutting the system down??..what is a hall effect sensor??

  • gearhead_lif May 11, 2010




    Not trying to insult you but did you put the sparkplug wires back in the way they was, if not then you are not going have fire in the cylinder at the right time, also is it LT1?


  • Anonymous Apr 01, 2014

    My van ran fine.next morning. Wouldint start. Changed plugs and wires and fuel filter

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A hall effect sensor senses a magnetic cylinder inside of a piston and sends an electronic signal to a processor. These are widely used in food/product packaging. I have a '93 formula myself and am unaware of any of these sensors on the car/engine.
Only thing I can think of is my firebird went through about 3 distributors in five years. So far the one in there now is running well. But you'll experience hard starts and stalls if this is tanking on ya.

Posted on Jun 02, 2009

  • Rick O'Brien Sep 14, 2014

    The other thing with the 5.7 V8's is believe it or not, it is possible when re-installing the distributor (I don't know what you could be talking about replacing the cap by the way as there is no cap) that the spline on the distributor was lined up incorrectly with the "master" inside the timing cover off the end of the cam. Recheck the plug wires also.

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Have you checked the hall effect sensor? that is possibly what it may be

Posted on Jan 22, 2009

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