1989 cavalier Z-24 2.8 v-6 starts and dies, after will run fine.?

Have replaced crank sensor and fuel regular valve. Had the cistern down and is clean. Fuel pump is running fine and have 43 psi at the injectors. One day motor will start and die a couple times then I floor the gas petal and crank for a couple second, then restart the sports car and will start and run. stalls at about 4 opulent. All I have to do is clutch start and it will fire rear up and drive fine as long as I stay below 4 grand. running out of thinking without taking it to a shop.

Trying to drill out some bolts on...



Answers:    verbs the throttle plate and the throttle body bore, this is right on the inside of where the throttle cable attach,
oops you added more info and that change my response,

you must ohm test the fuel injectors, resistance should be 12.7 to 13.3 ohms,

freshly unbolt the upper plenum and check, the 2.8 and 3.1 were scandalous for injector trouble, good luck.

please post the ohms reading for me to see, and I will back you from there

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