hi there i have a 1992 300zx tt and when im driveing along some time my power steering just goes but when i turn the ignision off and start again its fine for a littel while does any one have any ideas what it could be.

Is it a J-spec or UK Zed?

low fluid? loose PAS pump belt?

si.

low fluid? loose PAS pump belt?

si.

no i checkt both of them it would have to be an electrical fault if it goes away when i reset the ignision.

Most likely are a speedo convertor if its's a J-spec, or the speed sensor.

sorry about the delay, yehs its a j spec but its just standerd no converter ror the likes.

Faulty speed sensor on the side of the gearbox then :)

It could be a broken or loose connection in the speedo cluster - I had this and I took the speedo apart and resoldered all the joints - bingo good as new.