Outline Of Diagnosis

Detect the malfunction of tank pressure sensor output property.

Judge NG when there is little variation in the fuel tank pressure even if the vehicle is in driving status where

Fig 1: Evaporative Emission Control System Pressure Sensor Range And Performance

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• If NG condition (a) & (b) are experienced, NG results.

  (If there is OK, NG experience becomes unexperienced.)

• If OK conditions (a) & (b) are experienced, OK results.

  (If there is NG, OK experience becomes unexperienced.)