P1102 – MAF Sensor Low Input (Ford)

Description

P1102 Ford indicates the MAF sensor signal is lower than expected.

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Symptoms

  • Rough idle
  • Hesitation
  • Lean running

Causes

  • Vacuum leak
  • Contaminated MAF
  • Faulty sensor

Diagnosis

  • Inspect intake system
  • Check MAF voltage
  • Smoke test

Repair

  • Repair leaks
  • Clean or replace MAF