close
    Toyota Corolla 2005 Engine Hesitation

    I occassionally have engine hestitation, especially when i slow down at a traffic and about to pedal down to move again the engine rpm drops & i have to off the engine and restart several times before the engine picks up on good rpm to move again. Tried cleaning the Airflow sensor but no success. The system diagnosis reads the following; 1. PO420; Catalyst System Efficiency Below Threshold (Blank 1) 2. P0657; Actuator Supply Voltage Circuit/Open 3. P2116; Throttle Actuator control motor Current Range/Performance

    0  Views: 1031 Answers: 1 Posted: 11 years ago
    Tags: engine light

    1 Answer

    sounds like your O2 sensor  is bad and it is messing up your Catalyst System which is over heating and cutting down on your RMP's 



    Top contributors in Automobile category

     
    Colleen
    Answers: 171 / Questions: 0
    Karma: 2810
     
    ROMOS
    Answers: 57 / Questions: 0
    Karma: 2760
     
    Deleted User
    Answers: 35 / Questions: 0
    Karma: 1020
     
    country bumpkin
    Answers: 7 / Questions: 0
    Karma: 615
    > Top contributors chart

    Unanswered Questions

    cccdominicano
    Answers: 0 Views: 4 Rating: 0
    iwin68institute1
    Answers: 0 Views: 5 Rating: 0
    jbomoney
    Answers: 0 Views: 4 Rating: 0
    18mcnet
    Answers: 0 Views: 6 Rating: 0
    wi88gamecom
    Answers: 0 Views: 7 Rating: 0
    gtdiorcombr1
    Answers: 0 Views: 9 Rating: 0
    fun88lbcom
    Answers: 0 Views: 4 Rating: 0
    b52audam3rdaverad
    Answers: 0 Views: 4 Rating: 0
    > More questions...
    483929
    questions
    724175
    answers
    813451
    users