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Home >> Mazda >> 2018 >> CX-3 Touring, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Symptom Troubleshooting - Engine Control >> No. 14 Poor Fuel Economy >> Related PIDs

Related PIDs

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
AC_REQ Off/On A/C switch status received by PCM via CAN
  • A/C switch off: Off
  • A/C switch on: On
APP1 % Accelerator pedal opening angle (absolute value) input from APP sensor No. 1
  • Accelerator pedal released: Approx. 16%
  • Accelerator pedal fully depressed: Approx. 91%
V APP sensor No. 1 voltage
  • Accelerator pedal released: Approx. 0.78 V
  • Accelerator pedal fully depressed: Approx. 4.54 V
APP2 % Accelerator pedal opening angle (absolute value) input from APP sensor No. 2
  • Accelerator pedal released: Approx. 7.84%
  • Accelerator pedal fully depressed: Approx. 45.49%
V APP sensor No. 2 voltage
  • Accelerator pedal released: Approx. 0.39 V
  • Accelerator pedal fully depressed: Approx. 2.27 V
ECT °C, °F Engine coolant temperature input from ECT sensor No. 1
  • Displays ECT
V ECT sensor No. 1 voltage Ignition switched ON (engine off)
  • ECT is 29 °C {84 °F}: Approx. 2.65 V Idle (after warm up)
  • ECT is 88 °C {190 °F}: Approx. 0.71 V
FUEL_PRES KPa {MPA}, mBar {BAR}, psi, in H20 Fuel pressure input from fuel pressure sensor
  • Displays fuel pressure
V Fuel pressure sensor voltage Ignition switched ON (engine off)
  • Fuel pressure is approx. 16.91 MPa {172.4 kgf/cm 2 , 2453 psi}: Approx. 2.91 V Idle (after warm up)
  • Fuel pressure is 3.44-3.95 MPa {35.1-40.2 kgf/cm 2 , 499-572 psi}: 0.98-1.05 V (ECT is 90 °C {194 °F})
IAT °C, °F Intake air temperature (No. 1) input from IAT sensor No. 1
  • Displays IAT (No. 1)
V IAT sensor No. 1 voltage
  • IAT is 20 °C {68 °F}: Approx. 2.70 V
  • IAT is 40 °C {104 °F}: Approx. 1.80 V
  • IAT is 60 °C {140 °F}: Approx. 1.20 V
LOAD % Ratio of actual amount of intake air to the maximum air charging amount (mass volume) of cylinder
  • Idle (after warm up): Approx. 22.35%
  • Racing (engine speed is 2, 000 RPM): Approx. 17.25%
  • Racing (engine speed is 4, 000 RPM): Approx. 19.21%
MAF g/Sec Mass air flow input from MAF sensor
  • Displays MAF
V MAF sensor voltage
  • Ignition switched ON (engine off) (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V
  • Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.97 V
  • Racing (engine speed is 2, 000 RPM) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.26 V
MAP KPa {MPA}, mBar {BAR}, psi, in H20 Manifold absolute pressure input from MAP sensor
  • Displays MAP
MAP_V V MAP sensor voltage
  • Ignition switched ON (engine off) (MAP:101 kPa {1.03 kgf/cm 2 , 14.6 psi}): Approx. 4.12 V
  • Idle (after warm up) (MAP: 33 kPa {0.34 kgf/cm 2 , 4.8 psi}): Approx. 1.9 V
  • Racing (engine speed is 2, 000 RPM) (MAP: 26 kPa {0.27 kgf/cm 2 , 3.8 psi}): Approx. 1.23 V
TP_REL % Throttle valve opening angle (relative value) with value at throttle valve fully close timing as the start point
  • Accelerator pedal released: Approx. 12%
  • Accelerator pedal fully depressed: Approx. 82%
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