got to crank an the motor for a few min till it starts got to do it a few time and it starts if the check engine lite dont come on itll die in a few but if its on it runs fine

 

Well you're O for 1 so far. We don't know anything bout your vehicle. Much less anything else.

So you need to create a bi-line at your name and signature at the bottom. See others posting for ideas. Put in the year, tranny etc.....

Seems to me you have 2 issues. Your check ball in the tank is probably not sealing like so many others here. Allowing the fuel to drain back toward the tank between starts. You can witness this with a fuel gage after the engine is shut down. Pressure will drop off. You can also try KOEO for 3 seconds and then off then back to KOEO and so on for about 5 or 6 times before attempting to crank the engine. This will completely prime the fuel system.

However, you may also have a low res feedback problem from the opti causing the fuel pump and injectors to shut down. So scanning it is an absolute must.

Welcome to the board. Better luck on your second post.

 

i checked that and replaced it didnt work checked opti wires for the 12v and 5 volts like u told another guy and it was fine looked at the opti plug on the distributor and it looked burnt is it suppose to look that way or should i replace it

 

i also have that problem i have a 95 z28 camaro 5.7 automatic trans i crank it and it dont start till i crank it twice. when its worm it cranks on the first time and if i drove it for an hour or more i have to crank it twice. i have new wires, new plugs "gaped right", new cap and rotor, cold air intake with clean filter, one year old fuel pump. all stock. my gauge shows half a tank when driving and when i turn off the car it shows 1/4 tank. ur guys help will really be appreciated. thanks