Is your idle surging if so 1st just check your coolent level if low you will get this code. on the under side of the throttle body their is a idle air control valve some people call it the fast idle valve replace it. remove body- clamp off the coolent lines -unplug -remove screws and swap out for new. Hondadoc2112
Trouble code P0505 means:Idle control system malfunction
Trouble code P0505 means:Idle control system malfunction
Trouble code P0505 means:Idle control system malfunction
Trouble code P0505 means: Idle control system malfunction
Trouble code P0505 means: Idle Air Control System
Trouble code P0505 means: Idle Air Control System
p0505 code mean Idle Air Control System. And I need to know the information of your car, then I can help you.
Trouble code P0505 means:Idle control system malfunction
Trouble code P0505 means: Idle Air Control System
It is possible that the reason for the P0505 code would cause a vehicle not to start. It relates toÊthe idle air vacuum line.
change your throttle positioning sensor located on the intake manifold
seek to find code 504 and it will lead you that will help give you further instructions about code505!!.