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tC Mechanical Factoids

Discussion in 'tC Knowledgebase' started by navylife59, Oct 7, 2007.

  1. navylife59
    Offline

    navylife59 Super Moderator Staff Member

    Joined:
    Mar 22, 2006
    Location:
    Emory, Texas or Gretna, LA

    • Power Steering Pump
      Standard fluid pressure:
      7,800 to 8,300 kPa (80 to 85 kgf/cm2, 1,131 to 1,204 psi)
      Standard fluid temperature:
      75 to 80°C (167 to 176°F)


    • Fuel Pressure Regulator Located in Fuel Tank
      REMOVE FUEL PRESSURE REGULATOR
      ASSEMBLY
      (a) Pull the fuel pressure regulator out of the fuel tank
      fuel filter.
      (b) Remove the O-ring from the fuel pressure regulator.
    • IAT malfunction can put ECM into "SAFE MODE" operation (aka limp mode).

      MONITOR DESCRIPTION
      The ECM monitors the sensor voltage and uses this value to calculate the Intake Air Temperature (IAT).
      When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a
      malfunction in the IAT sensor and sets a DTC.
      Example:
      If the sensor output indicates -40°C (-40°F) for 0.5 seconds or more, the ECM determines that there is an
      open in the IAT sensor circuit, and sets DTC P0113. Conversely, if the sensor output indicates more than
      140°C (284°F) for 0.5 seconds or more, the ECM determines that there is a short in the sensor circuit, and
      sets DTC P0112.
      If the malfunction is not repaired successfully, a DTC is set 0.5 seconds after the engine is next started.
    • Purge Vacuum Switching Valve
      Purge VSV.JPG
      1. INSPECT VACUUM SWITCHING VALVE ASSEMBLY
      (for EVAP)
      (a) Measure the resistance of the purge VSV.
      Standard resistance
      Tester Connection Specified Condition
      1 - 2 30 to 34 Ω at 20°C (68°F)
      1 - Body ground
      2 - Body ground
      10 MΩ or higher
      If the result is not as specified, replace the purge
      VSV.

      PVSV Checks.JPG
     

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