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P1101 1998 FORD F150

P1101 1998 FORD F150 - Mass Air Flow Sensor Out of Self-Test Range

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3   
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Possible causes

  • Faulty Mass Air Flow Sensor
  • Air leak before or after sensor
  • Mass Air Flow Sensor harness is open or shorted
  • Mass Air Flow Sensor circuit poor electrical connection

Tech notes

The MAF sensor circuit is monitored by the PCM for an out of range air flow (or voltage) input. If during key ON engine OFF the air flow voltage signal is greater than 0.27 volts the test fails. Likewise, if during key ON engine running, an air flow voltage signal is not within 0.46 volt to 2.44 volts, the test fails.

When is the code detected?

The Engine Control Module (ECM) detected a Mass Air Flow (MAF) sensor signal above or below calibrated limit

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P1101 1998 Ford F150 Description

The Mass Air Flow (MAF sensor circuit is monitored by the Powertrain Control Module (PCM) for an out of range air flow (or voltage) input. If during key ON engine OFF the air flow voltage signal is greater than 0.27 volts the test fails. Likewise, if during key ON engine running, an air flow voltage signal is not within 0.46 volt to 2.44 volts, the test fails.
OBDII Code P1101 1998 Ford F150 - Mass Air Flow Sensor Out of Self-Test Range  - AutoCodes.com

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