Catalytic Converter Guide & Diagnostic Information
The catalytic converter is an exhaust emission control device that reduces toxic gases and pollutants in exhaust gas from an internal combustion engine into less-toxic pollutants by catalyzing a redox reaction.
Location on Vehicle
Underneath the vehicle in the exhaust piping, downstream of the exhaust manifold.
Typical Symptoms of Failure
- Failed converter substrate
- Upstream exhaust leak
- Engine misfires dumping fuel into exhaust
Associated Diagnostic Trouble Codes
A malfunction in the Catalytic Converter can trigger the following OBD-II fault codes:
Estimated Replacement Cost
Typical cost to replace the Catalytic Converter: $800 - $2,500 (parts and labor).
Citations & Authority References
This technical part definition is cross-referenced with:
- EPA On-Board Diagnostics II Standard Specifications
- SAE J2012 Automotive Component Design Regulations