You sure the choke is fully open-before it dies do you see a lot of black smoke from the rear.
Check the EGR first
If the EGR system is leaking or inoperative, it can cause driveability problems, including detonation (knocking or pinging when accelerating or under load), a rough idle, stalling, hard starting, elevated NOx emissions and even elevated hydrocarbon (HC) emissions in the exhaust.
Try spraying around the intake manifold area-when it smooths out you got your culprit-check all vac lines and I mean all.
Chasing down a vacuum leak can be a bear
Best tool to use is the vacuum gauge-
Friday, April 6th, 2007 AT 8:24 AM