Engine Performance problem
1990 Cadillac Deville V8 Front Wheel Drive Automatic 140000 miles
Im tryen to find out why my catalytic converter gets hot to the point it glows red, I have had it replaced twice and it still gets hot. I have changed the muffler, o2 censor and the ecm. The car also isn't given good gas mileage and does not have much power. Please help me.