93 GMC Sierra
350 engine with 5.7 liter tbi. Truck will not run without two
foot method and when does run with two foot method it is
very rough. I have replaced complete throttle body, ecm,
mad sensor. Truck was sitting a few years before I got
ahold of it if that helps. Any help is greatly appreciated as
I cannot afford to keep playing the guessing game. Thank
you all in advance