This bulletin announces the diagnostic procedures and availability of reprograming files to rectify the...
Subaru technical service bulletin 09-131-25 for 2015-2021 Subaru WRX STI.
- Bulletin number
- 09-131-25
- Component
- Engine
- Summary
- "This bulletin announces the diagnostic procedures and availability of reprograming files to rectify the following Diagnostic Trouble Codes (DTCs). • P2404: EVAP System Leak Detection Pump Sense Circuit Range/Performance. • P0420: Catalyst System Efficiency Below Threshold Bank 1. (not applicable for 15-18 models)"
Owners of these vehicles have filed 4 complaints in the engine category.
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