my 94 blazer idles smooth but when tack hits 2 it dies

 

idles so so but go for the gas and it cuts out???

 

ID start by checking the fuel pressure sounds like you got fuel problems

 

idle speed sensor??????

 

thanks i will try that

 

Since it falls flat at higher RPMs, I would suspect a clogged catalytic converter. You cant test this by disconnecting & removing the upstream O2 sensor (located between the 'y' in the y-pipe & the catalytic converter). Take it for a spin. It will be loud, but if the cat is clogged, it should run better.