Car wont stay on after i crank it. on 1992 Lexus ES300

My car will not stay running. i crank it up and it goes dead. Any suggestions?

Asked by for the 1992 Lexus ES300
do you mean battery goes dead or just won't run if won;t run check fuel pressure has to have between 42 &47 pounds when you turn key on
It crank and then while its sits in idle it goes dead. When im driving and i come to a stop it goes dead, so then i try and crank it up again it wont stay on. It starts and then it goes dead.