I just bought a 93 honda civic and I took it to goodyear and they said I needed my tie rods tightend is there a way I can do it myself?

Yes. If it's to correct alignment, the inner tie rod shaft has to be moved into your outer tie rod and then tightened. this is all done from the wheel area.

If it is to correct play in the steering, then this should apply.

The inner tie rod connection to the Rack unit is hidden by the rack boot which will need to be removed from the Rack unit but not completely removed from the shaft, just pushed over out of the way while working on the inner tie rod adjustment. The large nut on the end of the inner tie rod will have to be loosened & checked, for any damage, then reinstalled & tightened to the correct amount necessary to cause sufficient drag on the inner tie rod but not too much to restrict it during normal use.

You may even want to consider a remanufactured Rack unit if you have too much slack in the steering. Tightening the Inner Tie Rods doesn't replace the seals & rebuild the remainder of the Rack & Pinion, yet these parts all have the same amount of wear on them that the Inner Tie Rod does.

Manuals available w/step by step instructions for your vehicle at parts stores. good luck