1990 buick centruy 3.3 car starts but dies soon after?

Question

for awhile it would idol then kill when you are driving i have tried many used parts. i tried mass air flow senor, used computer which it seemed to run worse after that so i put the old one back in. i tried a used coil pack module. checked the fuel filter and spark plug and they are fine. i tried used throttle body and now it starts up and dies right away. just want to know if anyone has any other ideas car has many miles on it

Answer 1

you know, i been here thinking about your problem. i have a 88 olds, and it did something simular to yours, my problem was the fuel pump regulator. it might be worth for you to check on it, it might fix yours too, mine was like starving for gas.

Answer 2

did you ever try to see if the onboard computer had stored any trouble codes?? sometimes they are there even though no lite shows up on the dash:

http://www.automotivetroubleshootingsecr...

its a start anyway. let me know what you find

Answer 3

well you have to pull the sencors, i mean the codes , did you clean the i.a.c. valve, on the fuel filter y cant check it y have to install a new one

Answer 4

Check the fuel pump inlet screen. These tend to get very full of debris such as rust.  Also, check your inlet hose from the tank.  Possibly drain the tank and flush it with half a gallon of gas with the drain plug open on the bottom.  And while you are flushing, take an air hose and blow into the line BEFORE the pump.  But check with a local mechanic before you do this as your car may have a one way check valve in the tank.  You dont want to blow that out.  Not a big deal if you do, you can buy an in-line check valve for it anyways. But if u do blow it out, it will just take a little longer to start.   Hope this helps!