well i DONE a search and i found this http://www.calaisturbo.com.au/showth...ight=overdrive (http://www.calaisturbo.com.au/showthread.php?t=104316&highlight=overdrive) its the same problem im having, when overdrive just comes in when ever it feels like it even when the power button it on...... wat i wanna ask is,, is there a fuse/solenoid in the fuse box were i can take out to disable the overdrive all together? or is it just mainly dealing with the solenoid on the tranny?