2003 catalytic converter

[03-4-runner]

Any ideas for code p0430? toyota wants over $1800 to replace the catalytic converter...dash engine light and vsc lights on

 

[NJshadow93]

Any ideas for code p0430? toyota wants over $1800 to replace the catalytic converter...dash engine light and vsc lights on

What makes them think its a bad cat and not just an O2 sensor?

 

[ebg18t]

What makes them think its a bad cat and not just an O2 sensor?

The profit margin.