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Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System - DTC Diagnostics (P0328 - P061B) (Except Hybrid) >> DTC Troubleshooting >> DTC P0451 (2.4 L Engine) (2017 2018 2019)

DTC P0451 (2.4 L Engine) (2017 2018 2019)

DTC P0451  : FTP Sensor Circuit Range/Performance Problem

NOTE: 

DTC Description Confirmed DTC Pending DTC
P0451 FTP Sensor Circuit Range/Performance Problem    

DTC (PGM-FI)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Start the engine, and let it idle for 1 minute.

    -4. Monitor the OBD STATUS for DTC P0451 in the DTCs MENU with the HDS.

    DTC Description OBD STATUS
    P0451 FTP Sensor Circuit Range/Performance Problem  

    Does the HDS indicate FAILED?

    YES 

    The failure is duplicated. Replace the FTP sensor .

    NO 

    If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the FTP sensor and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot . If the HDS indicates NOT COMPLETED, keep idling until a result comes on.