LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2022 >> 3 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN 7/VIN L) >> Manifold Absolute Pressure (Map) Sensor Inspection >> Function Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Function Inspection

  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON (engine off).
  3. Display the PCM PIDs [MAP_VOLT] and [MAP]. (See PID/DATA MONITOR INSPECTION  .)
  4. Compare the voltage and manifold absolute pressure indications for the PIDs [MAP_VOLT] and [MAP] with the standard in the table indicated below.
Standard

MAP_VOLT MAP Remarks
V kPa {kgf/cm2 , psi}
Approx. 4.04 100 {1.02, 14.5} Ignition switched ON (engine off)
Approx. 1.40 35 {0.36, 5.1} Idle (after warm up)
Approx. 1.01 26 {0.27, 3.8} Racing (Engine speed: 2, 000 rpm)