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Communities > Diagnostics > USA Cars > 1999 F-150 throttle position rate.
1999 F-150 throttle position rate.

236 Views 3 Replies Latest reply: 2023-12-05 14:08:28


  •   Level 1   
    (8) points

    2023-12-03 23:40:19
     4.6 engine, runs perfectly. 

    My MX 808 on diagnostics says the throttle position rate is supposed to be something like 0-100. The scanner says it's minus 725 and is red.

    Any idea what it is and why?

    Thank you.
    Reply

  •   Level 9   
    (3714) points

    2023-12-04 10:13:01 (Reply to:)

    Hi, to reset the tps, turn key on ,wait for Dingdong to stop,after a few seconds push
    throttle pedal slowly to the floor ,than let off quickly, and turn key off repeat this twice.
    Reply

  •   Level 1   
    (8) points

    2023-12-04 20:38:22 (Reply to:)
     No change and every other parameter seems OK other than a P0500.
    Reply

  •   Level 9   
    (3714) points

    2023-12-05 14:08:28 (Reply to:)

    Hi, the p0500 ( vehicle speed sensor malfunction) ,check sensor and wiring. But if your
    engine runs OK as you stated keep it as it is. This car still has a tps sensor mounted
    on the throttle valve body.this should read about 12 % when running, it should read 0 to
    100 when ignition on when pedal is pressed to the floor.( engine not running).
    Reply
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