I'm not sure of engine Size? Did you check the crank sensor? Any applicable trouble codes? Do you have a fuel injector pulse, engine cranking?
SOURCE: 1992 Buick Century won't start sometimes but has spark in the plugs.
Faulty cam sensor maybe - it controls the injectors. To diagnose, when you get a non-start, spray a V.small squirt of easy-start(ether) and if it runs a little then you have a fuel issue. The spark timing is controlled by the crankshaft sensor so that can be faulty and cause a mistimed spark but usually you'll get a mis-fire in those cases.
SOURCE: why is there No Spark in a 1991 Buick Lesabre
ECM would be the next part. Check the number on it . If it has the number 1228253 replace it anyway because they give a cutting off problem. Clean battery cables all three and replace bolts too.
SOURCE: 1997 CAMARO TURNS OVER BUTVWONT
the icm, coil, and crank sensor all read off the opti. Chances are you have a bad optispark (distributor). I just went thru the same issue and found it to be the problem.
check your fuel pressure as well, you may have anissue with your fuel pump and or relay
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Eng.3.3L new crank sensor no Applicable codes it crancks with no spark
Did you check primary voltage to ignition module? Pink wire, goes hot with the key on. That circuit is fuse protected.
Is that a in line fuse?
Did you check for voltage? Use a test light. If you have voltage on the wire, replacing the fuse won't help. Note the fuse in the picture, don't worry about the year listed.
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