1990 Olds Cutlass Ciera starts but stalls instantly help plz

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skatepunkVII
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Joined: Thu Feb 20, 2014 12:02 pm

1990 Olds Cutlass Ciera starts but stalls instantly help plz

Unread post by skatepunkVII » Thu Feb 20, 2014 12:07 pm

So the car will start run for maybe 4 secs and stall immediately. It will remain running if i give it gas and open the throttle up. Was told a few things fuel filter, fuel pump, possible injector. I just replaced the fuel filter and i just want to get a definite as to what i should get/do next so if any suggestion please do not hesitate.

 

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carriedi
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Location: Oregon

Re: 1990 Olds Cutlass Ciera starts but stalls instantly help

Unread post by carriedi » Fri Feb 21, 2014 11:51 am

if it will stay running if you keep the open the throttle I would think it's more the idle circuit that fuel pressure. Checking fuel pressure wouldn't hurt though. What motor do you have in your car. 2.5 or 3.3
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skatepunkVII
Posts: 2
Joined: Thu Feb 20, 2014 12:02 pm

Re: 1990 Olds Cutlass Ciera starts but stalls instantly help

Unread post by skatepunkVII » Fri Feb 21, 2014 6:03 pm

its the 3.3 so check the fuel pressure, then work to maybe mass air?

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carriedi
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Location: Oregon

Re: 1990 Olds Cutlass Ciera starts but stalls instantly help

Unread post by carriedi » Sat Feb 22, 2014 5:52 am

you should hook up a scanner and see if you can see anything out of the ordinary. The scanner can see what your MAF is reading. you could also see what your injector pulse is doing. Your 3.3L could have a shorted injector that will ground the fuel injector circuit and shut off all the injectors as soon as you try to start up too. unplug one injector on each side and see if you have injector pulse with a test light. run the test light between the two terminals in the injector harness connector and it should flash to show the injector circuit is pulsing.

If you do a pressure test, put your gauge on the fuel test port and cycle the key. (turn the key on to the acc position. when the dash lights up) don't go the the start position. Check the fuel pressure. It should jump up to 41 - 47 psi. and stay close to that. Running it will be a little lower.It should jump up to full pressure in the 2 second prime when you turn the key to the run position. If it goes up but not all the way, cycle the key a few times and see if it will build up pressure.
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