If possible, check fuel pressure at the shrader valve with KOEO, Key On, Engine Off, then do KOER Key on engine run. If pressure drops off as it stalls we will know it'* teh fuel system.
Other things to check are the EGR valve. A stuck open pintal will cause a start and stall, as well as a cracked EGR tube, however it'* more likely to cause a rough idle. But still worth checking.
Remove the air filter and air tube so yoru at the MAF screen. The MAF will be between the air filter and the throttle plate. Unplug MAF and try to start. If it stumbles and then smooths out, the MAF is bad.
SAVING THE WORLD ONE BONNEVILLE AT A TIME
1997,1998,2000,2005 year confused Bonneville SSExi. Stock? ish.
ADMIN @ http://www.f150-forums.com/