Hi,

My throttle body on GD1 had sensor problem last month. So, I changed to used throttle body taken from 1.5 vtec (GD3). There is a vibration when I put my gear on R. It was really loud sound and hard vibration coming from the gearbox. Then I sent my GD1 for tuning, gearbox inspection and so on. My mechanic said my gearbox still in good condition but the vibration is still there and it is not really bad as before.

My question is, does the vibration happened because of I use 1.5 vtec throttle body?