P1101 – MAF Sensor Out of Self-Test Range (Ford)

Description

P1101 Ford indicates the MAF sensor is out of the expected range during self-test.

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Symptoms

  • Hesitation
  • High fuel trims
  • Poor acceleration

Causes

  • Contaminated MAF
  • Air leaks
  • Faulty sensor

Diagnosis

  • Check fuel trims
  • Smoke test intake
  • Test MAF output

Repair

  • Clean or replace MAF
  • Repair intake leaks