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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> On-Board Diagnostic - Engine Control System (3 Of 5) >> DTC P144A-00; Evaporator System: Clogging Between Fuel Tank And Fuel Tank Pressure Sensor >> PID Item/Simulation Item Used In Diagnosis

PID Item/Simulation Item Used In Diagnosis

PID/DATA MONITOR ITEM TABLE

Item Definition Unit Condition/Specification
FTP Fuel tank pressure input from fuel tank Pa {KPA}, mBar {BAR}, psi, in H20
  • Ignition switched ON (engine off): Approx. -23 Pa {-2.3 kgf/m 2 , -0.0033 psi}
  • Idle (after warm up): -282- -46 Pa {-28.7- -4.7 kgf/m 2 , -0.0409- -0.0067 psi}
  • Racing (Engine speed 2, 000 rpm): -1.47- -0.869 kPa {-0.0149- -0.0089 kgf/cm 2, -0.213- -0.127 psi}
  • Racing (Engine speed 4, 000 rpm): -1.69- -1.07 kPa

    {-0.0172- -0.0110 kgf/cm 2 , -0.245- -0.156 psi}

Fuel tank pressure sensor voltage V
  • Ignition switched ON (engine off): Approx. 2.6 V
  • Idle (after warm up): 2.2-2.62 V
  • Racing (Engine speed 2, 000 rpm): 1.9-1.91 V
  • Racing (Engine speed 4, 000 rpm): 1.73-1.76 V
SIMULATION ITEM TABLE

Item Applicable component Operation Operation condition
Engine condition Other condition
EVAPCP Purge solenoid valve Changes % and forcibly drives/stops purge solenoid valve.
  • Under the following conditions:
  • Ignition is switched ON (engine off)
  • Idle (no load)
Not applicable
EVAPCV CV solenoid valve Select OFF/ON to forcibly drive/stop the CV solenoid valve.
  • Under the following conditions:
  • Ignition is switched ON (engine off)
  • Idle (no load)
CAUTION:
  • Do not add fuel with the CV solenoid valve closed. Otherwise, it will result in air pollution because the evaporative gas in the fuel tank will escape directly into the atmosphere.
NOTE:
  • Override drive parameter: Off
  • CV solenoid valve: open
  • Override drive parameter: On
  • CV solenoid valve: close