Question

1995 Buick Riviera starts then stalls right away?

The car is a 1995 Buick Riviera supercharged. I've been dealing with this issue for over a year now as i'm a college student and haven't had time to work on the vehicle. I bought it last year, it started and ran just fine. I parked it in my driveway to leave for college. About 5 months passed and it was the middle of winter. I attempted to start the car, but didn't have any luck. To this day the vehicle will not start. When I turn the ignition the engine will either continuously turn over, or start but then immediately stall. I noticed after the vehicle would not start, that the whole intake was off, I reinstalled but still have the same symptoms. I unplugged the maf sensor, still no luck. If anyone has any suggestions, it would be greatly appreciated as i'm trying to get this car up and running for an upcoming winter demolition derby.

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Clarification Request
No start

" that the whole intake was off, I reinstalled" Huh? Literally? Could be a VAT issue (vehicle anti-theft). Try a different ignition key. Use the key to unlock the driver's door, first.

Loren

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.

The intake was off for whatever reason but the car ran without it, When I popped the hood in attempt to diagnose I realised the intake was off. So the intake manifold was sucking in raw air,. ( i know that's not good) so potentially that is part of the issue? Update, I don't believe security lockout is the issue as the light comes on when key is turned on, then dissapears. If I spray brake cleaner in the intake the engine runs stronger and longer, but then dies

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Fuel

Chris; If the engine will start and run as long as you spray carb cleaner, brake cleaner, or fuel into the intake, then your problem is lack of fuel. Rent or buy a fuel pressure gauge to see if you have pressure. The pressure should be 41-47psi. Make darned sure that you aren't out of gas. (seen this many times). Plugged fuel filter?
If it is a fuel pump issue, you can have a helper 'smack' the fuel tank with a rubber mallet while attempting to start the engine. Sometimes, the electric fuel pump will get 'stuck' and needs a jar to get it going. When you refer to "intake", I think that you're meaning the cover that's over the top of the engine?
After the tests, let me know what you found.
Good luck.
Loren

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Sort if the same issue?

The car usually starts and runs no problem but occasionally after I drive for a bit and the shut off. I'll go to start it back up and it will either pulse really low idle "2-300 rpm" or drop so low it actually stalls but always starts back up ,then I give it gas for a second to hold rpms up and it runs fine? Any ideas

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old thread

possible causes;
1) weak fuel pump
2) clogged fuel filter
3) failing fuel injector/s

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Answer
Update

Update, I don't believe security lockout is the issue as the light comes on when key is turned on, then dissapears. If I spray brake cleaner in the intake the engine runs stronger and longer, but then dies

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