Hello, I have a 1996 Z28 LT1. One day recently I was stopped at a red light and she began to grumble. When the light turned green and I went to go she stalled out on me. Almost as if I let off the clutch too quick. Well, I attempted to start her again and she would start and die. This happened several times before some people helped me get her off the road. I went back a couple hours later and she started up after about 5 cranks. I got her home and the next day I took her to "The Hobby Shop" here on the base where my husband and I are stationed. We replaced the PVC Valve hose that was basically in two pieces in hopes that it would be the easy fix. Well, guess what, it never turns out to be the easy thing. On my way home from the shop she did it again. This time I went back a couple hours later and she wouldn't even turn over. Luckily, when I went back to try again today she started for me. So now she is at least home and not on the side of some road. I guess my question is.....what do you think, doc? If it is an O2 censor is that a difficult/expensive fix? What else do you think it could be. Or where should I begin to look. I have a repair manual and a hobby shop full of helpful people. What I don't have is the money to take her to some con-mechanic. Anything would be helpful!