P1120 – Throttle Position Sensor Out of Range (Ford)

Description

P1120 Ford indicates the throttle position sensor is out of expected range.

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Symptoms

  • Poor acceleration
  • Hesitation
  • Surging

Causes

  • Faulty TPS sensor
  • Wiring issues
  • Throttle body wear

Diagnosis

  • Check TPS voltage
  • Inspect wiring
  • Scan throttle data

Repair

  • Replace TPS sensor
  • Repair wiring