Hi,
Here is my problem. I have a 1989 chevy camaro rs with a 305 TBI. When I start it it will idle for about 3 seconds and then die. If I try to give it gas it dies. I've checked the fuel pump and filter and they're both fine.The injectorsspray a nice even spray. I checked the vacuum lines and blew out both the supply and return lines and they'rebothclear. Thegas cap is fine. I've lookedfor bad wiring but didn't see anything.Ihave never unboltedthe intake or throttle body. It just starteddointhis allof a sudden.It is probably something super simple but I'm not seeing it so I thought I'd see if any of you guys know anything about this problem.

Thanks a lot,
Jeremy

 

have you check the fule pressure reagulator you might not have enough pressure

 

That's the next thing on my list. Do you know what the fuel pressure should be off the top of your head by chance?

Thanks,
Jeremy

 

Iam not sure my car is carburated so i dont know but i can look it up tonight and let you knowbut i am sure someone on the site might have an anwser for you before than but i will still look.

 

Has the TBI unit ever been rebuilt? If not, it probably wouldn't hurt to pick up a rebuild kit and do it. You could have some crap clogging a passage. I rebuilt the one on my 91 last year, and it is pretty easy to work on.
The regulator is built into the TBI, under the injector "pods". Here is a write-up on how to make the regulator adjustable, if you want to go that far. If nothing else it describes where to find it. You can also do a Google search and get more visual help.
http://www.thirdgen.org/tbi-afpr

 

The pressure should be 40-47 psi