Whats goin on.. i kinda have a problem i just swapped a 1998 LS with a 98 LS manifold... problem is my ecu keeps throwing map sensor codes ive tryed using the map sensor on the 94 LS throttle body, then i tryed the one on the fire wall (stock) single cam..still the same problem but what i dont get is i had a obd0 b16 in there before and it worked fine... and there seems to be less vaccumes on the obd2 manifold then the 0bd0 b16 manifold.. anyone have the same set up or know what i can do, cause the motor starts right up but likes to fall on its face while getting on it or giving it gas at first cause the map sensor and the vaccumes or what ever anyone have any ideas let me know thanks.