Ok, if your checking the fuel pressure at the fuel rail then I believe you have fuel just no spark to light it.
The electronic spark control ESC, is designed to RETARD the timing when the engine senses a spark nock or pinging.
One of my Customers had the same problem. His was a 90 model or so S10 Blazer. I check everything with fuel system and Ignition system. Tested everything except the ESC. I just happen to have an used one didn't know if it was good or not. Put it on and the vehicle fired right up.
Sunday, May 18th, 2008 AT 10:26 PM