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code p1430 and p1431 hcac system variable valve pressure

Discussion in 'Generation 1 Prius Discussion' started by boostedsil40, Sep 23, 2019.

  1. boostedsil40

    boostedsil40 Junior Member

    Joined:
    Nov 7, 2018
    24
    1
    0
    Location:
    AZ
    Vehicle:
    2002 Prius
    Model:
    One
    Hello I got two codes that are p1430 and p1431 and cant find much info on them,It looks to be catalitic converter is this emissions related code?what is it and would it cauuse any driving problems?These are my only codes yet today the red exclamation came on and the hv battery stays at low charge and car is barley running,I dont think its related and also if my hv battery is going out why isnt there a code for it popping up?
     
    #1 boostedsil40, Sep 23, 2019
  2. gothstone

    gothstone Junior Member

    Joined:
    Sep 29, 2019
    36
    5
    0
    Location:
    KC MO
    Vehicle:
    2002 Prius
    Model:
    N/A
    P1430 - Open or short in vacuum sensor circuit
    • Open or short in vacuum sensor circuit
    • Vacuum sensor for HC adsorber and catalyst system
    • ECM
    P1431 - Vacuum Sensor for HC Adsorber and Catalyst System Circuit Range/Performance Problem
    • Vacuum sensor for HC adsorber and catalyst system
    • Vacuum line
    HINT: If DTCs P1430, P1431, P0110, P0115, P0116, P0120, P0121 are output simultaneously, E2 (sensorground) may be open.

    Diagnostic procedures attached.
     

    Attached Files:

    #2 gothstone, Sep 30, 2019
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