FixVault
Home › Infiniti › 2011 › M37 Base › Repair and Diagnosis › External Pages › Different car › Section 300 (Engine Control System - Component Testing (For MEXICO)) › Manifold Absolute Pressure Sensor › Component Function Check

Component Function Check

WARNING: This page is about a different car, the 2012 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK MANIFOLD ABSOLUTE PRESSURE SENSOR FUNCTION

    WITH CONSULT

    1. Start engine.
    2. Check "MAP SENSOR" in "DATA MONITOR" mode with CONSULT.
      Monitor Item Condition Values/Status
      MAP SENSOR
      • Engine: After warming up
      • Selector lever: P or N position
      • A/C switch: OFF
      • No load
      		 Idle Approx. 1.0 V
      2, 000 rpm Approx. 1.35 V

    WITHOUT CONSULT

    1. Start engine.
    2. Check the voltage between ECM harness connector and ground.
      ECM Condition Voltage
      + -
      Connector Terminal Connector Terminal
      F110 67 E80 175 [Engine is running]
      • Warm-up condition
      • Idle speed
      		 1.2 V
      [Engine is running]
      • Warm-up condition
      • Engine speed: 2, 000 rpm
      		 1.5 V

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Proceed to "DIAGNOSIS PROCEDURE ".

About FixVault