Originally Posted by rmcdaniel12

In reference to cats, am i correct in saying that when u put the pedal to the floor and it smells like someone busted a$$ in ur car, is that a sign that u need new cats? I get that smell and im running stacked pulleys with fuel pressure originally set to 66psi but kept getting a CEL saying both banks are too rich. Im just wondering if bad cats could give faulty readings and also throw the CEL saying im too rich when i might not really be.