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Home >> Mazda >> 2023 >> MX-5 Miata Club >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System >> Vacuum Sensor 2 Inspection >> Function Inspection

Function Inspection

  1. Connect the M-MDS to the DLC-2.
  2. Switch the ignition ON (engine off).
  3. Display the PID BBP. (See ON-BOARD DIAGNOSTIC TEST .) (See PCM INSPECTION .)
  4. Compare the voltage and power brake unit vacuum indications for the PID BBP with the standard in the table indicated below.
STANDARD SPECIFICATION

BBP
V kPa {kgf/cm2 , psi}
Approx. 0.79 20 {0.20, 2.9}
Approx. 1.8 47 {0.48, 6.8}
Approx. 4.0 101 {1.03, 14.6}