IACV Gems - Ebay

[Rangey89]

Found and purchased one of these off Ebay, cheaper than every other one I've found online.

$38 delivered to the door.:D

Idle AIR Control Valve Land Rover Range Rover 4 0 4 6 LP ERR4352 | eBay (http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=150946000123)

[Rangey89]

Arrived and fitted today, works a treat. :D

[PeterAllen]

For the less knowledgeable, what is this suppose to do and how did you know that it needed to be replaced.