1998 Engine Check light on
Code PO505 Malfunction exist in the Idle Control system
Honda part number 16022-P8A-A03
Has any one replace the Idle Control Valve with this code and it solve the problem or could it be a vacuum leak?

 

I'm currently having the same problem with a 00 accord V6 (same code). I will post info on it if i find anything.

 

I've replaced it before.... OEM price is over $200 ...I got one from Ebay ( made in china ) … works fine.