Engine-Codes - Infiniti - P1103 INFINITI

P1103 INFINITI - MAP Sensor High Voltage

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

P1103 INFINITI Possible Causes

  • Faulty Manifold Absolute Pressure (MAP)
  • Manifold Absolute Pressure (MAP) harness is open or shorted
  • Manifold Absolute Pressure (MAP) circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How is the P1103 INFINITI code repair?

Start by checking 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.

What is the cost to diagnose the P1103 INFINITI code

Labor: 1.0

The cost to diagnose the P1103 INFINITI 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.

Possible Symptoms

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

P1103 INFINITI Meaning

The Manifold Absolute Pressure (MAP) sensor provides instantaneous manifold pressure information to the engine's Engine Control Module (ECM). The data is used to calculate air density and determine the engine's air mass flow rate, which in turn determines the required fuel metering for optimum combustion. A fuel-injected engine may alternately use a Mass Air Flow (MAF) sensor to detect the intake airflow. A typical configuration employs one or the other, but seldom both.The MAP/BARO Switch solenoid valve switches it's air flow passage according to the voltage signal sent from the ECM.
In some Infiniti vehicles the absolute pressure sensor is built into ECM.

More Information

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