I HAVE HUGE PROB PLEASE HELP

ok i daily a 91 b2600i. it slowly started losing power on the way to work didnt really think much of it, it has its days, so i come to a stop light and dies i pop the clutch turns over and starts runnin and idles at 500 im like wtf, then it died on me i turned the key started right back up idled at 500 again then died tryed again and didnt work. dad looked at it found out no spark from the coil wire replaced coil same thing swapped them back out. right now im stuck and i really need some help i will read up on the forumand in my book but i figured id start this hopin for a lead on something thanks for any advise.

spark module in the dizzy?

the rotor? that thing is good to go just did tune up a while back

no there is a module in the distributor a black box lookin thing

Try a new set of plug wires. Thats help me a time or two. Maybe u got a bum set.

i tried another wire and it still no spark and ima check out the module in the morn.

ok i dont get it y would it be the dizzy if im not gettin spark from the coil wire? shouldnt it be something related to that? ugh this sucks

sounds like a fuel filter starting to clog. have you ever changed it out?

check your computer, its a common problem for these trucks

have you pressure washed or rinsed the engine bay on your truck? i did that and ended up ruining a relay that wasnt listed in the book.