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Home › Acura › 2021 › TLX Base › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTC Diagnostics (2 Of 6) › DTC Troubleshooting › DTC Troubleshooting: P0134 (2.0L Engine) › Overview

DTC Troubleshooting: P0134 (2.0L Engine): Overview

If the A/F sensor (Sensor 1) heater does not activate or the internal resistance is high, the PCM determines an abnormality and stores the DTC.