What can be wrong with my 1990 Buick Park Avenue2?

I have a 1990 Buick Park avenue 3.8 liter. It use to run when it gets hot it cuts off. Now it won't start. I just put in a crank shaft censor and a knock censor. It still does the same. I sprayed starting fluid into the intake manifold and it will start and it will keep running until I get done spraying the Ether. I know a fuel is getting up to the fuel rail because I checked the pressure of the fuel. The pressure was good and there is gas in the fuel rail. It just seems like it isn't going through the injectors. I hear the fuel relay clicking on when I turn the ignition on. Thanks if you can help me.What can be wrong with my 1990 Buick Park Avenue2?It's time to check for power at the injectors.This can be done with a test light.If they aren't getting a pulse as the engine cranks,then the trouble is in the injector circuit fuse,or the computer.What can be wrong with my 1990 Buick Park Avenue2?Sounds like you have bad timing. Check your belt / chain, whatever that car runs on. If you have fuel, then your not getting air or spark, or, you are sparking at the wrong time ie. the vehicle is not firing when its supposed to, due to a bad timing belt/chain. Prob not dist. timing, as this would still allow the car to start, just idle rough.Check to see if your spark plugs are wet, if they are then you are flooding, and it is infact not firing when its supposed to.What can be wrong with my 1990 Buick Park Avenue2?Sounds like a Engine Control Module. They run aftermarket around $100.00 or if it is a coil pack, around another $100.00 i had the same symptoms on fiances 1990 Buick last week and voila it was solved... for $200.00What can be wrong with my 1990 Buick Park Avenue2?
your problem may be the presure regulator or even the ecm or ecu th ecm is the on board computer the ecu is under the coil pack in your engen compartment u should rent a code reader and check the trouble codes to tell what may be the exact problem u can even buy a code reader for your 90 buic at a parts store for about 25 bucks for a cheep one but they work fairly well i have one for a 92 cavaliar that works on all gm cars for that typ of ecc system