Idle issues 5.8 1994 e-150

[damnvan]

I just changed the TPS for and now when i start it the van runs fine for about one minute the idles rough and stalls

[boonie]

Try replacing or cleaning the IAC....

[Trickedout420]

check the timing, it could be that when the computer goes to lower the rpm range the timing could be so far delayed that it could kill it just an idea

[nighthawk285]

yeah, sounds like IAC, when you first start the truck, it's open a lot to let air into the engine, then as it warms up, the computer starts closing the IAC to make a nice idle, but if it closes to far, your engine won't get any air and dies.