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Home >> Subaru >> 2007 >> B9 Tribeca Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H6DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0101 Mass Or Volume Air Flow Circuit Range/Performance >> Diagnostic Method >> Normality Judgment
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Normality Judgment

Judge as OK when the criteria below are met.

Judgment Value 

MALFUNCTION CRITERIA AND THRESHOLD VALUE REFERENCE

Malfunction Criteria Threshold Value
(Low side error)  
Output voltage ≥ 1.79 V
Engine speed ≥ 2200 rpm
Throttle opening angle ≥ 17°
Intake manifold pressure ≥ 73.3 kPa (550 mmHg, 21.7 inHg)
Engine coolant temperature ≥ 75°C (167°F)
(High side error)  
Output voltage < 1.83 V
Engine speed 500 ↔ 850 rpm
Throttle opening angle < 3.5°
Intake manifold pressure < 46.7 kPa (350 mmHg, 13.8 inHg)
Fuel system diagnostics Rich side normal