I got the fuel pump replaced on the lumina a few weeks ago after finding the fuel pressure was running 10-15 psi lower than it should be. The car runs better than ever when warm, but the cold start issue just kept getting worse. I took the car back in 2 days ago after and told them I don't want it back untill its fixed. Guess what they found...the plastic intake gasket around the driver side rear bank is cracked in several places...you can only see it with the upper plenum off the intake. I seen it before they removed the lower intake, so that HAS to be it.
Now, who wants to help me pay for this
"This is not a cheerocracy...I make the cheercisions around here"