Here is what I have checked on my z28 so far...

New Fuel Filter, New FPR, checked fuel rail for fuel pressure, and checked injector pulse... I have no injector pulse... *checked with Ohm Meter*

Here is what the car is doing... Started 1 month ago, Driving down the road, the engine just quit, as if someone turned off the key. Car wouldnt restart.... After tinkering with it for a few days (checking the above mentioned stuff) Here is what I found. The car will start and run for 5 min or so after sitting all night, then the car will just DIE, as if the key was turned off. I checked the pulse at the #2 Injector (easy to get to) and here is what I found... With the car runnning, the injectors fluctuate like it should, rises with rpms, etc. When the car dies, the injectors go dead, and when I try and refire the car, the injectors show nothing... this repeats... If I let the car sit for a day, it will fire again the next, die after 5 min of idle... and the story repeats... I dont know what else to check.

I have swapped the computer AND chip to test, and same thing happens. I have spark, I pulled a plug wire, used a spare plug grounded on the manifold and had a healthy spark durring crank, yet the car wont start... any clue? I dont know where to go from here... Thanks!!!