why does my van cut off and want start until it has sit with out tfyn to cank it for a while?

1992 OLDSMOBILE SILHOUETTE
89,000 MILES
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HANK WEBB
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I hav a 92 olds shiluett van with a 3800. It run good. The check engen lite is on and it start to cut off after running good. Iwas told to repace the fuel pump. I did.and the same thing happen. I was told to replace coil paks and i did and the same happen. What should i do now.
Dec 23, 2011 at 1:45 AM
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RASMATAZ
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https://www.2carpros.com/articles/car-cranks-but-wont-start

Next time it refuses to start don't wait for it to make up its mind-do below immediately to determine if its fuel or spark problem

Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, Do you hear the fuel pump come On when you turn key on? If not check fuel pump fuse and fuel pump relay if okay-check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs,coil's resistances,cap and rotor,distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it and keep testing
Dec 23, 2011 at 1:46 AM