Alright here it is. About four months ago I changed my fuel pump thinking that was what was causing my hard starts. Even after the install the same problem kept on coming. So im sure is not the pump. And neither is the fuel filter(4months old)
Fuel pressure reads as follows: When key is turned to ON position pressure goes to 40 then drops to 0. When car is on pressure stays around 38-40. When vacuum line is disconnected from regulator (WOT test)pressure goes to about 46-48. When car is turned off pressure drops to 0. What ever it is the pressure is not holding. Also, there is a faint smell of gas when car is on, yet i dont see any puddles or am able to trace it. Since the regulator is only about 30 bucks ill be changing that next. Any input would help

 

The regulator is probably not the problem since your pressure changes when you pull the vac line off. If it were the problem, the vac line would be wet so it's easy to check. Because you smell fuel AND you already changed the fuel pump, your problem is probably a leaky injector. The first thing to do is smell the oil to be sure it's not contaminated.

Unbolt the fuel rails and lift them up along with the injectors and fire up the fuel pump with the injectors sticking out. Don't try to crank the engine. I use the fuel pump prime connector or you can keep turning the ignition on for 2 seconds at a time. Look for the injector(s) that is dripping.

The best way to deal with a problem injector is to have them cleaned and flow matched professionally. You can also have them cleaned on the rail, in the engine with a cleaner like 3M makes attached to the rail. Don't just replace the sticky one without cleaning all the rest of them.

The next time you go to start the car, hold the throttle wide open. Then turn the key. If it starts easier than previously, that's another indication that you have a leak that is flooding the engine.

Dave

 

Holded the throttle wide open when turning on the car and it does not appear to be easier for the engine to turn over. Now when you said to smell the oil do you mean and see if there is a gasoline smell on it? IF thats the case then the oil did NOT have that smell. Ill have more info on that open throttle test when I come back from work.

 

Yes I meant for the smell of gas in the oil.

 

UPDATE:
*WOT when starting car does not help it at all.
*There is no gas smell on the oil itself.
*The only time there is a gas smell is when starting the engine. When the engine turns over or not, thats when the smell of gas comes out. During the time the car is on there is no gas smell.
*If i can turn the key to the start position when the pressure hits 40 before dropping, the engine will turn over with no problems

 

What fuel pump did you install? Sounds like it may have a problem with the check valve.

 

I installed a Racetronix pump. The kit without the wiring harness

 

Call/e-mail Racetronix and ask them what they think is wrong .

There are only 4 ways to lose fuel pressure on shutoff 1) leaking lines; 2) leaking injectors; 3) ruptured diaphragm in the FPR (or one that intentionally relieves pressure to protect injectors); 4) weak check valve in the pump.

 

That pretty much sums it up.
A fuel pressure gauge, the diagnostic pages from the G.M. manual and some time are all that is required.

 

UPDATE: Today at work when starting car i hear a click and all power goes out. I checked the battery terminals and find that the + battery nut is stripped and wont screw down securely. Could this be the cause for all my ignition problems?

 

Could be.
Is it a factory battery nut?

 

Yes. It is the side mounting terminals.

 

The Racetronix harness system comes with new hard brass ones.
Did you get this or did you just buy the pump assembly.
We can always sell you some brass nuts if you wish or you can get some at your local stereo shop. Stay away from the gold plated ones. The gold plating is very thin and comes off to expose cheap soft metal. Try to get solid hard brass ones.

 

Yes i got the hard brass ones. Unfortunately that doesnt seem to fix my fuel pressure problem. One good thing though, my ses light is now off, it had been on for a while. Im thinking that poor terminals were the problem on that. One problem solved now one left

 

Did you connect the flex tube to the black push-lock fitting or directly to the metal tube?