help meeee

is this thresd working?

i have a1994 olds cutlass supreme with a 3.1 v-6 car normally runs great...

car misfires especially with acceleration. new plug wires/plugs/dyno checked and all tests performed and that business cant seem to figure it out.
also changed 1 of 3 coils, that had a misfire///Car ran great for a month.
Doing it again now.. Have tried to check spark again, but dont see any problem like before. could it be egr valve? fuel pump? ICM?
Please help!!!!

Taterhead

Could it be? Check the fuel pressure for starters, also could be a bad or dirty injector or ign module.

What did they charge you for the dyno pull? This is what it could be.
· Low fuel pressure for all the reasons, bad regulator, dirty filter, bad pump, bad pump connector next to the gas tank
· Bad ICM or “crudded” up connector
Bad MAF (tap it with a screwdriver and see if the engine stumbles)
Plugged fuel injectors
Severely dirty air filter will make it chug
A stuck EGR on an OBDI will usually make the car sound like a diesel at idle and cruise, but little or no effect at WOT (clean it, check its operation, or just plug) The OBD I wont toss a code without it working.
After that the only thing that comes to mind is a vacuum/intake leak. You can check that with a vacuum gauge, and spraying WD or starting fluid around the intake, unless it is sucking air from the engine. (But for god sakes dont catch the car on fire)