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Home >> Mazda >> 2021 >> 3 Turbo, 4D Hatchback >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VIN Y) >> High Fuel Pressure Sensor Inspection >> Function Inspection
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Function Inspection

  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON (engine off).
  3. Display the PCM PID [FUEL_PRES]. (See PID/DATA MONITOR INSPECTION .) (See PID/DATA MONITOR TABLE [PCM (VIN Y)] .)
  4. Compare the voltage and fuel pressure indications for the PID [FUEL_PRES] with the standard in the table indicated below.
    • If they do not match the standard, perform the voltage inspection. (See VOLTAGE INSPECTION .)
STANDARD VOLTAGE SPECIFICATION

FUEL_PRES Remarks
V   MPa {kgf/cm2 , psi}
Approx. 2.91 16.91 {172.4, 2453} Ignition switched ON (engine off)
Approx. 0.98-1.05 3.44-3.95 {35.1-40.2, 499-572} Idle (after warm up)