subs1000w

im putting the finishing touches on my jdm engine install and ive got everything plugged in exept a 2 prong plug thats in the same general area as the tbody iac powervalve acuator etc. onlything i can think of is it is for the exhaust gas temp sesor which is for cali spec maxs only. any one else find a gray 2 prong femal plug in that general area have any idea what it is thanks and i know its not for the trany because thats a gray 4 prong plug