I have just purchased a used 2004 Mazda RX-8 with 88,000 miles. I am having an issue where, while driving the car the check engine light and the TCS/DSC Indicator light will come on. When it does the the car will stall - mind you this is while driving down the freeway doing 60+.
Can you help me trouble shoot this?

 

Drove it to my nearest Mazda dealer to have checked.
Throttle Control valve and gasket needs to be replaced. ($436 just for the parts)