Wel i have a problem with my 4runner! its a 2002 4runner sr5 the problem is that th e VSC & TRAC light is on but i have the OEM switch that turns on and off but will not turn it off! also my CEL light is on but dats da CATALYST EFECIANY ON THERSHOLD BANK ONE WHICH I DONT KNOWS WATS DAT PLEASE HELP!!!!!!!!!!