i have the trd exhaust muffler installed but it was still oto quit.. so i cut my catilic converter and my rezognater off and now my check engine light is on...which i knew would happen... but also my trac off and my vsc( vechile stabily control light is on)... why?????? and is this serious,,, please help me

 

The trac off light and the VSC lights are all tied together. There are numerous problems that cause this condition--from a bad flow of air to a gas cap left off. I am sure the "surgery" you did has caused the light show you are now experiencing...............

 

Put the cat back on an either go with no resinator or get a diffrent resinator that will allow for the sound you want. The lights will not go off until you put the cat back on....

 

If you want it to sound really cool, go trade it in for a Mustang GT.

 

Duplicate topic by same member:

https://www.scionlife.com/forums/viewtopic.php?t=113956