You have1992 Mitsubishi 3000 gt starts good but cut off when put into gear?

I had a similar problem with my 1994 3000GT. When I would shift into reverse, it would stall. As is turned out, the radiator was partially clogged, cutting off flow for the oil cooler. After replacing the radiator, I have had no problems with this.

Ok wow 3000gt don't have an oil cooler the vr4's do... A radiator has nothing to do with why the tranny kills the car when you put it in gear.... You my friend were robbed by your mechanic.... It's probably the idle air control on the throttle body.... It could need a rebuild of the clutch with a full kit.... I recommend finishing the flywheel as well. Hope its not the tranny sychros that means new or re built tranny .... Good luck think simple first....