Oversteer to the left, but not to the right. A couple of problems can cause this. One is wedge in the chassis. Left front and Right rear are heavy. Usually the tweak station will remove this.
The other problem is too much steering throw to the right and not enough to the left. As a start make sure the car will drive aproximately the same size circles at full lock clockwise and counterclockwise in a slow circle. The TC3 actually has asymmetric steering to compensate for some torque steer so the circles may not be exactly the same size, but close. This asymmetry was discussed previously in this thread. See the link below.
A third thing to try is to drive without using the stops on the steering. Add extra steering travel and then you can apply enough steering to suit each corner. This is the way that Christian Tabush and I drive on indoor asphalt. We set the car to circle in about 1/2 a lane.
Torque steer discussion on this thread, Reference to torque steer article
(Had trouble getting the Associated polished Hinge Pins. Tests will have to wait a bit.)