Originally Posted by thomas91gt
Yea im kinda thinking injector cuz it has always seemed to run really rich
---------- Post added at 08:37 AM ---------- Previous post was at 08:33 AM ----------
Thats what i thought 38-40 with it unplugged I guess that would be the reason for it backfiring on startup as well.
Your fuel pressure should be 38-40 with the engine idling and the vacuum hose on the regulator removed and plugged off. When you reconnect the vacuum hose the fuel pressure will drop some.
You should also check your timing. Don't forget to remove the spout plug before checking/setting and to replace it afterwards.
If you do not have a Chiltons manual for your car, get one. They contain a lot of specs and procedures for testing and working on your car.