ok this winter i puted out injector for test flow,after rebuilt i put it back.
(whit the hayness manual instruction)
after that, i drive the car 1 or 2 time and no problem at all.
but after, engine lack power when i hit the gaz pedal.
the engine rpm go to 1.5rpm and drop every time.

the afm was ok,the gasket on lower and top manifold was new.
new o ring to, gaz tank full, all hose and wiring conected.

thx dan
s4 na stock