b18civic1993

hey everyone i recently bought a gauge cluster from a hatchback vx. i was told that the gas and temp gauges dont work even though i have not tried it. i was wondering if anyone could help me fix them or give me instructions on how to swap mine into it or anything to give me a full working gauge cluster. i have a dx cluster with no tach now which is why i bought this. greatly apreciate anyones input.thanks