93 Buick Park Avenue won't stay running when warm. (Buick Park Avenue Engine Stalling Electrical Sensors)

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Question Details Asked:Nov 21, 2010 - 02:36 PMStatus:Open

petey882	93 Buick Park Avenue won't stay running when warm. I am working on a friend's 93 Park Avenue Ultra with the supercharged motor in it. It is having a problem cutting off by itself after it gets warmed up. If you crank it when it is cold, it cranks and idles fine but once it's warmed up a bit it starts cutting out and cuts off. Most of the time it tries to stay running but usually cuts off. Sometimes it will crank back up and other times it will just act like it is going to crank and doesn't. I have checked the fuel pressure and it stays between 40 and 48 psi. One thing I tried once it warmed up and wouldn't crank back up at all, I unplugged the mass air flow sensor. It will crank up but will not idle. I can keep it running by feathering the pedal but if I plug it back up it won't crank at all even if I pump the gas. Just wondering if the mass air flow sensor is the problem. I don't want to buy it if it's not the problem because it's $113 bucks and money is tight but i need this car running. Any help would be great.
	In Makes & Models > Buick > Park Avenue In Maintenance & Repair > Engine > Stalling In Maintenance & Repair > Electrical > Sensors 0 answers
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