1994 Pontiac Grand Am 1994 Quard 4 OHC No spark!!

1994 PONTIAC GRAND AM
179,000 MILES • 4 CYL • FWD • AUTOMATIC
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EVERBOB1984
  • MEMBER
  • 1 POST
I was driving home from work car ran like normal started just fine i honked horn and car died.. then wouldnt start, i replaced coil packs and housing plugs wires, and crank possiton senser... still no spark i have spent alot of money so far i i worked on many cars im exp but this is boggling my mind!!!! could i it my computer? fuel pump turns on and primes i can smel gas outa the muffler so i gota be geting it to cylenders pls im going insane!
Sep 22, 2010 at 6:26 PM
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ERNEST CLARK
  • ✓ASE Certified Mechanic
  • 1,730 POSTS
  • ASE Certified Mechanic
You can check to see if the computer is sending a signal to the coils to fire by using a multi-meter. Unfortunately I don't have a diagram for your connector. Maybe another tech on this site could help with that.

Also check all of your grounds. Some times a rusty ground will cause the computers to go crazy.

If there's still no signal to the coils, then I'd suspect the computer. But first, check that there's a reference voltage to the crank and cam position sensors. If that is also missing, then it's a sure bet the computer is bad.
Sep 25, 2010 at 5:54 PM
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