Engine-Codes - Mercury - P1101 MERCURY

P1101 MERCURY - Mass Air Flow Sensor Out of Self-Test Range

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

P1101 MERCURY 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

How do I fix code P1101 MERCURY?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.

Cost of diagnosing the P1101 MERCURY code

Labor: 1.0

The cost of diagnosing the P1101 MERCURY code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

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 MERCURY Meaning

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.

P1101 MERCURY More Information

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