Injuneer

What line? The line from the canister to the engine?

Answer the question.... What was on the ene of the return line that pulled out with the canister?

It's impossible to help you if you don't read very carefully what I wrote, and answer the questions that I ask.

AtlasXVIII

Was the end, I Found it and I fix it. There was a vaccum in the line that comes to the engine, I fix it. I went to shell to put some gasoline, I remove the cap and alot of pressure came out, The car miss fire at a red light for around 5 secounds and then stopped. Testing the car drove for 50miles and dint have any troble. I check psi, and fuel psi was dropping realy slow, slower than cold.

AtlasXVIII

Can vaccum make a car missfire, ? The 96 z28 came with vented optic? Why pressure drop slower at opperating temp? At what temp does the ecu stop making the car run rich? My car is always at 180⁰ but in hot temp at 190⁰? I have the fans always on.

Injuneer

This is impossible... Once again I'm giving up. Way too frustrating.

Sorry, but I'm just getting too old and impatient for stuff like this.

PS: It's an "Opti" or the "Optispark"..... Not the "optic".

AtlasXVIII

thanks Fred sorry, my main lenguage is not english. I appreciate your help. You may be old but you have hell of a experience in this cars. C'mon you have been helping me alot. Thank you.