P0422Medium Priority
Main Catalyst Efficiency Below Threshold (Bank 1)
Category: Powertrain• Auxiliary Emission Controls
1 articles · 1 makes affected
Owner Statistics
Based on 9,012 real owner discussions • 232 confirmed solutions
$4,935
Average Repair Cost
3%
Success Rate
18%
DIY Repairs
9,012
Data Sources
About This Data
Statistics are aggregated from real owner discussions on Reddit, automotive forums, and YouTube comments. All data is anonymized and represents actual repair experiences reported by vehicle owners.
Frequently Appears With
These codes often appear together in owner reports. Check these if you see P0422.
Based on analysis of 2 owner reports where multiple codes appeared together.