Home › Subaru › 2019 › WRX Limited, Standard Trans › Repair and Diagnosis › Engine Performance › System › Engine Control System (Diagnostics) (Except For STI) (1 Of 4) › Diagnostic Procedure With Diagnostic Trouble Code (DTC) › DTC P013F: O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 2 › Component Description