2001 Dodge Neon Q&A
2001 Dodge Neon Question: What causes catalytic converter to go bad?
AGE + MILEAGE. - pushrod
Any other codes besides P0420? mileage and maintainence have alot to do with failures. And yes as stated prior , to rich or to lean or misfire conditions all contribute to premature failure. Also the code may be set falsley due to other conditions. should have it monitored for function before replacement.,,,,,,,,,,,,<<<<<<<<<<<<< UNIONDALE H.S. class of 1980 >>>>>>>>>>>>>>>we rocked! - ziptie12