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Communities > Diagnostics > USA Cars > getting limp mode and p2101 on gmc 4500
getting limp mode and p2101 on gmc 4500

2101 Views 2 Replies Latest reply: 2017-09-17 04:17:03


  •   Level 1   
    (5) points

    2017-09-02 20:29:36
     Replaced throttle body, wire conector , accelerator peddle checked all grounds. Please help.
    Truck goes into limp mode as soon as key is turned on
    Reply

  •   Level 7   
    (1473) points
    Kevin H

    2017-09-02 21:54:42 (Reply to:)

     Turn key on and engine off. Monitor TP1 and TP2 with a scan tool. Do both rise and fall while slowly pressing the throttle to the floor and slowly releasing the throttle with your foot?
     It sounds to me like you have a shorted wire, either the TP1 or TP2 circuit.
    Reply

  •   Level 10   
    (7578) points
    witsend

    2017-09-17 04:17:03 (Reply to:Kevin H)

     I saw the movie Cars ,and it sounds like to me The Old Boy might just need a Hot Sexy Mercedes parked  up next to him to get him out of Limp mode
    Reply
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