Hey guys im new on this Form was wounder If i can get some help, I have a LS 400 1990 seem like when i start my car the Catalytic Converter gets REALLY RED. and im wondering why, i had problems with my Idle Speed Value with the RPM going up and down over 2000 RPM, got that Fix. And now i got Problems starting the car with the Catalytic Converter Getting red hot on me, lack of power when u drive, car dies out at times, does any one know what can cause the cat to Get Red hot? PLZ help thanks