I was wondering about fuel pressure, but should I smell so much gas when I start the car if fuel pressure is a problem? I want to test it either way. What should the fuel pressure be? I'm going to start running fuel injector cleaner in the meantime. I have run a lot through it already, with no noticeable improvement.
I you smell gas realy strong when your starting it your injectors O rings are probly leaking.
That could be your prob, letting air in till it warms up.
Fuel pressure is 41-47 psi.
Might see about getting the injectors cleaned by a professional , or replaceing them.
They are pricey about $95-100 each, you can find them in sets for much less just shop the Net.
The throttle blades will carbon up and cause erratic idle conditions. Just get some carb cleaner and clean the black residue off them. ALso, have you checked your fuel presurre on start up? The fuel pressure regulator may be crapping out.
Did you all ever figure out what the problem was? I have 95 with a 2.3 engine that does the very same thing and I did all the same things to try to fix it. When it first starts it runs fine then about 20-30 second it basically trys to flood itself unless you can step down on the gas a few times. If you do that it comes out of it and does not do it again. I also notice at that point the temp gauge is just starting to move also. Should it be storing any trouble codes on a cold engine?
Any help or further ideas and how to test them would be greatly appreciated!
IF thiers codes they'll be there not matter if the cars hot or cold. The most DTC's only go away when cleared.
The fuel pressure regulator may very well be the problem as crazy_jim stated above.
With the 4cyl you need to rent or buy the Fuel pressure gauge and its adapter. It needs to be installed in the fuel lines because the 4cyl does not have a test port like the V6.
When the fuel pressure regulator went bad on my '02 3800 it had starting issues similar to what is being described in this thread. 60U$ corrected the problem...