1992 D150 5.2 engine,stalls when put into gear or as i try to take off on 1992 Dodge W150

it has always been very dependable util last week

Asked by for the 1992 Dodge W150
look for vacuum leaks.

is it carb or fuel injected??

Roy
it MPFI, I NOTICED THE HOSE FRON THE AIR FILTER TO THE VALVE COVER WAS OFF WOULD THAT CAUSE IT TO STALL