I'd do a fuel pressure & flow test to see what's really going on with that system. Check the fuse, the relay and the flow. Have you jumped the pump at the relay socket to see if that solves the problem?
Many parts shops will rent a pressure gauge for free (Advance Auto for instance). Be sure to perform a flow test. Bentley suggests 43psi and about 1/2 gallon/minute (about a quart/liter every 30 seconds). Fuel pump should pull no more than five amps. If you tee the fuel gauge, you should see 43psi on the rail. If you dead-head the pump, you might see 80 psi if it's healthy.
You don't see any leaks when the car is cold, do you? I've had fuel leaks under the intake manifold that caused hard starting before. It's these two short lengths between the hard lines and the fuel rail here. They are not visible with the upper intake installed. Usually I just got a little whiff of gas on cold starts.
As for the full tank leak - check the o-ring on the fuel pump housing. Part #7 here.
I haven't been smelling it really anymore but soon I plan to change the fuel pump and the O ring of course, would like to go boost after I get a few other things i'd like to do out of the way.
Currently the car is running great, slapped in a new alternator and she's doing great. I recently purchased some style 5 BBS wheels and have been looking for all the things I need to do the 4x100 to 5x120 conversion on my car. So far I got the front wheel hubs from an e36, now on the hunt for the rears I believe I can only use BMW e36 318ti wheel hubs with the control arms.... Any suggestions or recommendations? I'm so close, the cheapest i've found the set of hubs for is $500 picked up about a 2 hour drive from me... :|
