I went to help some one out and do spark plugs on a 2010 is250 and i pulled off the intake manifold and the vcs connector wires pulled out from the connector on the jumoer harness to the black connector. Does anyone have a diagram or picture of the wires... any help would be awesome... i know they sell a pig tail harness but it doesnt help me with where the actuall wires plug in the connector

 

Take a pic of the sensor you're talking about OR find one online and post it. I don't have an IS250, so I'll be unable to help; but I'm sure, with the right helpful picture, some other member can easily help you out there.