P1128 – Throttle Control Motor Performance (Ford)

Description

P1128 Ford indicates a performance issue in the throttle control motor.

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Symptoms

  • Poor acceleration
  • Hesitation
  • Surging

Causes

  • Motor wear
  • Wiring resistance
  • Throttle body issues

Diagnosis

  • Check ETC motor data
  • Inspect wiring
  • Test throttle body

Repair

  • Replace throttle body
  • Repair wiring