P0418Medium Priority
Secondary Air Injection System Relay A circuit Malfunction
Category: Powertrain• Auxiliary Emission Controls
4 articles · 2 makes affected
Owner Statistics
Based on 78,602 real owner discussions • 1985 confirmed solutions
$6,275
Average Repair Cost
3%
Success Rate
21%
DIY Repairs
78,602
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.