Ebay Part, $40. 3 bolts (11mm wrench) 1 electrical connector. Right on top of the engine, in front of the blower behind the intake manifold. After installing I cleared the codes, but my error code came back almost immediately. That's an annoyance. I found another cracked hose. Fixed, and cleared the codes. Viola, no more check engine light. Sweet.
Lesson Learned: This car is
CRAZY sensitive to vacuum leaks and reports them as the P1509 code. Quintuple-check for leaks before dropping money on a new part