P0430Medium Priority
Catalyst System Efficiency Below Threshold (Bank 2)
Category: Powertrain• Auxiliary Emission Controls
22 articles · 6 makes affected
Owner Data Insights
Most Effective Fixes for P0430
Based on 30 owner reports. Success rates show how often each fix resolved the issue.
0% success
9 reports
0% success
9 reports
0% success
4 reports
#4Muffler
0% success
4 reports
0% success
4 reports
Start with the highest success rate fix when diagnosing P0430. If that doesn't resolve the issue, work down the list.
Frequently Appears With P0430
These codes often appear together in owner reports. Check these if you see P0430.
Based on analysis of 22 owner reports where multiple codes appeared together.
Owner Statistics for P0430
Based on 80 real owner discussions • 12 confirmed solutions
15%
Success Rate
80
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.
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