I have a 1994 Buick Roadmaster with the LT Corvette engine. The car starts immediately and then dies. It does not idle at all. Where should I look for the problem? I have replaced the fuel pressure regulator, fuel pump, fuel filter and fuel relay. I am at end of my rope.

SOURCE: car doesn't seem to get enough gas to engine

Have you done a tune lately on the car?
I would also suspect a fuel pump problem is you've done a tune up recently.

SOURCE: olds alero 2.4 idle fuel pressure

most likely idle air control sensor or low engine coolant I know sounds funny but IAC uses coolant to regulate idle. Idle air control valve or throttle body positioning sensor.

SOURCE: car idles rough and when u hit the throttle it starts to backfire

There is an Idle control sensor that has likely gone bad, take it to a trusted mechanic or dealer and have them replace it to solve the problem--roughly $300 repair at a Toyota dealer

SOURCE: will start then dies

On the regals they have a ceramic resistor on the passanger side under the fender. It heats up and over time it tends to brake and the wire inside tends to rust away. The fuel pumps run in 2 different speeds. Had the same problem. Dealer only part yet the car would run and you would think it was the fuel pump. Turn the key it kicks on then start and dies out. Ceramic on the pass side would need replaced. It is white about 2-3 inches long or so held on with 2 bolts i do believe. Ill find a bulliten i found online to help me diagnos the problem. :) hopefully this helps someone out instead of spendin $$$ that ya cant afford with the recession eh?

Dave C

• 1050 Answers
• Posted on May 11, 2009

SOURCE: Buick Regal dying

You have a problem in the fuel pump relay circuit for sure then. I'm betting the relay, but it could be that dropping resistor.