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Home >> Kia >> 2007 >> Rondo Base >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures (2 Of 2) - 2.4L >> DTC P0452 EVAP. Emission System-Pressure Sensor Low Input >> Component Inspection

Component Inspection

  1. Reconnect FTPS connector
  2. Ignition "ON" & Engine "OFF".
  3. Measure voltage between terminal 2 of the sensor harness connector and chassis ground (Do not disconnect FTPS harness connector)

    Specification : Voltage increases proportionally with decreasing pressure (Approx. 2.5V to 4.5V)

    PRESSURE CHART

    Pressure (kPa (hPa))  -3.75 (-37.5) 0 1.25 (12.5)
    Voltage (V)  4.5 1.5 0.5
    Fig 1: Measuring Voltage Between Terminal 2 Of Sensor Harness Connector And Chassis Ground
    G05182128
  4. Is voltage within the specification?

    YES 

    • Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure

    NO 

    • Check FTPS for contamination, deterioration, or damage. Substitute with a known-good FTPS and check for proper operation. If the problem is corrected, replace FTPS and then go to "VERIFICATION OF VEHICLE REPAIR " procedure
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