I have a 91 z28 and my car will cut off during driving and idle way down then when I give some gas its like it isnt getting any fuel to the tpi the code I pulled from it was 43 the esc I have no idea where the esc is located can anyone help me with this????

 

The ESC module is located inside the ECM. it is not an external sensor on your model year car. I would first try erasing the codes stored within the ECM and then recheck all ignition wires under the hood. If all checks out then go drive your car again and see what happens. If you get a code 43 again , which if you say is a ESC malfunction then you may have to buy a new ECM.