was stripping out a 300zx what i bought for spares,

under the bonnet come across a oval shapped thing with hks evc controller wrote on it,

it plugged into loom and had i think 3 vacum hoses on it.

just wanted to know what it did if anyone else had them and if its worth fitting, thank you

worth a few quid they are. I have an evc 4 works a treat for extra boost on a chipped tt. prolly worth about £150 used I would think if you have all the parts her's one of the older type like mine http://cgi.ebay.co.uk/JDM-HKS-EVC-4-electronic-boost-controller-S13-S14-RB20_W0QQitemZ180345361563QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item180345361563&_trksid=p3286.c0.m14&_trkparms=72%3A1689%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

newer ones like evc 5 are much dearer

Edited April 20, 200916 yr by 8ace

the thing i have is only under the bonnet i have no display unit

keep looking yourll find it in the glove box or under the stering colume

follow the cable back from the valve block to the control unit

it looks quite old fashion not like the part in the picture, i have stripped the shell bare to have it sprayed and theirs no display it also plugs into original loom around the area what i think are the aiv solinoids, if you were looking at the battery that position but drivers side.