On the Z28 I just bought, when i turn the key the engine rolls over, and over and over and over, and most of the time won't fire, until I stop, and try again, and it fires right up. Anyone have any ideas? I thought maybe opti but what I don't understand is why if I try a second time to start it, it fires in a snap, no matter how long I tried it the first time. It runs fine after start up, and doesn't seem to matter if it's hot or cold. ?????

 

check fuel pressure

 

another vote for fuel pressure

 

Third vote for fuel pressure. I actually made a diagnostics page on my website in my sig. Hardstarting is the first one I just did, maybe it can help you out.

 

More than likely his pressure, once it comes up, will be fine. He probably has a problem with the check ball in the fuel pump allowing the fuel to drain away from the fuel rails.

 

Thanks guys. I'll check out your site shippyZ28.