My car has been hard to start lately when it has been sitting for a while. Its idle when cold seems too low also, and has stalled a couple of times from the low idle. It will idle between 450-500 rpms when first started. When it warms up, the idle is fine. I went up to Tahoe over the weekend and when I came out in the morning to start the car, it didn't turn over for 2 cranks, then on the 3rd, I pushed the gas down a little and it finally started. Since then, I have had to push the gas down to get it started several times, but only when it has been sitting for hours.

My guess is that it has something to do with the fuel pressure or some cold start valve/component. Anyone able to help out?

THanks,

Matt
1994 E320 150k