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Home › Honda › 2023 › Pilot EX-L, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTC Diagnostics (P000F - P0193) › Troubleshooting › DTC P0139, P0159 › Overview

DTC P0139, P0159: Overview

If the secondary HO2S (Sensor 2) output voltage during the fuel cut-off takes time to change, the PCM determines an abnormality and stores the DTC.