I have completed the 2wd hilux to 1uz engine conversion and everything seems fine,but i was asked if i had cleared the codes that the donor car had, i have not done this but have heard on these forums way back that you can flash em out with a test light and the diag plug attached to the engine,i have done a search but came up with sweet F/A, how do i go about it , Do i just put 12v to the 'W' terminal as it looks like it illuminates the light in the original soarer dash. Any info welcomed,thanx Mick.