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Home >> Subaru >> 2007 >> Forester X, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0464 Fuel Level Sensor Circuit Intermittent >> Diagnostic Method >> Judgment Value

Judgment Value

JUDGMENT VALUE

Malfunction Criteria Threshold Value
Total times of the condition reaching follows,
DELFLMAX ≥ 0.2 - 0.26 V or SUMFL ≥ 16 V
At that time, DELFLMAX: Maximum difference of sensor output for 12.2 seconds; SUMFL: Integrated value of the sensor output deviation for 12.2 seconds
≥ 4 times

The diagnosis counter does not count up when the following conditions are completed within 12.2 seconds.

TANK PRESSURE SPECIFICATION

Maximum value - minimum value of change of tank pressure for 12.2 seconds ≥ 0.05 kPa (0.375 mmHg, 0.02 inHg)
Maximum value - minimum value of battery voltage for 12.2 seconds ≥ 1.65 V

Time Needed for Diagnosis:  12.2 seconds x 4 times

Malfunction Indicator Light Illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.



JUDGMENT VALUE

Malfunction Criteria Threshold Value
DELFLMAX < 0.2 - 0.26 V
SUMFL
At that time, DELFLMAX: Maximum difference of sensor output for 12.2 seconds; SUMFL: Integrated value of the sensor output deviation for 12.2 seconds
< 16 V