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Home >> Subaru >> 2005 >> Baja Base, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0171 - System Too Lean (Bank 1) - >> Diagnostic Method >> Judgment Value
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Judgment Value

JUDGMENT VALUE

Malfunction Criteria Threshold Value
fsobd = aflmd + lambda + kblrc >/= fsobdL1
aflmd = measured lambda
lambda = short term fuel trim
kblrc = long term fuel trim
See MAP 2 
fsobdL1 = lean side threshold value of fsobd


JUDGMENT VALUE

Malfunction Criteria Threshold Value
fsobd = aflmd + lambda + kblrc < 19%