Long start, stumble, then ok

[delatlanta1281]

Lately my car has had a weird starting issue. It doesn't happen all the time, but more than not.
I turn the key and it turn over for @ 7 seconds than stumbles to idle. It then runs fine, smells a little rich, but fine. Any Ideas?
THX
Rich

[mattdk318i]

check your fuel pressure regulator

[delatlanta1281]

I am running a porsche adjustable. I wonder if it is too high perhaps?

[mattdk318i]

hmm, good question. Could have something to do with the fuel filter. Unless thats new as well.

[delatlanta1281]

It isn't, I had an intake manifold gasket rip earlier this month and cause problems, I just replaced all of them, and have run into this problem. It is probably something I did wrong upon reinstallation of the removed parts... I am going to go over all my injector connections when it cools down later. I may turn my fpr down a tad to see if that's the problem. If it persists, I will probably change the pump/ filter (I doubt those are problems b/c it runs fine, but they're old).

[FlyingPrick]

does it happen all the time or just on a cold start? i have a slow start only when cold which i am starting to believe is a problem with the (and i hope this is right) drainback valve on the fuel pump where it's letting fuel drain back from the rail into the tank and when i cold start it, the rail has to refill, etc. i have replaced everything but the fuel pump and the injectors, as far as the fuel delivery is concerned.

[delatlanta1281]

Pretty much all the time.

[delatlanta1281]

Injector 6 leaking a bit, I just found it so that may be the problem. It starts when warm, but after 15 minutes there is a problem.