P1507 idle fault, cost of new idle control solenoid?
 

Got back into my car this morning after it being parked up for a week and found the idle wouldn't go below 1500 rpm, usually its rock solid 600 ish rpm. CEL on so checked the code at its come up as an Idle Control System Malfunction (Fail Safe) P1507. I've given the valve a bit of a clean and ran the engine with it unplugged and it throws up the Idle control low voltage code - which I would expect.

So would be be reasonable to assume the solenoid is goosed? Has anyone bought one recently and what was the cost? I know I can phone the stealers in the morning, but an idea would be useful...

The car is an '02 WRX.

Ta Rich