IACU help

[AMBRGurl]

I have a 91 240sx DOHC 5-speed which has recently started to either idle horribly or stall out all together. I narrowed it down to the idle air control valve aka motor and was able to find the auxilary part number and am now on the hunt for the main valve. I need help as to where it's located or any knowledge as to if a 91's part number is f01 or f11 as everywhere i call they tell me i have 2 options... any help would be great...

[hicas187]

it is located on the back of the motor on the intake manifold it has a idle screw facing the right fender you cant miss it there is another peice to it called i cant remeber sorry and that is in between the intake manifold and the head so good luck and let me know how long it takes to do cause im having the same problem and all fingers point to that.

[hicas187]

sorry on the passenger side of the vehicle!