Car will not idle after re-installing stock air box from previous cold air intake. I replaced idle control valve also replaced intake boot as well as valve cover gasket along with spark plugs, BMW 325i 1994.

Car will not idle after re-installing stock air box from previous cold air intake. I replaced idle control valve also replaced intake boot as well as valve cover gasket along with spark plugs, BMW 325i 1994.added information, the car starts up but in order for it to keep running the accelerator has to be pushed over and over,the maf sensor was replaced and installed in correct direction,I also tried searching for vacuum leaks but there was no change in rpm,could the hoses to the intake boot be in wrong position?