check engine came on, the code says its the turbo, how much to fix?

HAVE A MECHANIC CHECK IT OUT, NO WAY TO TELL ON LINE! WHAT CODE(S)?

EST TO REPL APPROX 2000 DEPENDING ON WHERE U FIND ONE. CALL TURBO CITY IN ORANGE CALIF.ALSO DEPENDS ON IF THE INSERT CAN BE REPL OR TOTAL TURBO