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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) - >> Enable Condition >> Notes
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Enable Condition: Notes

ENABLE CONDITION

Secondary Parameters Enable Conditions
Fuel learning system In operation
Engine coolant temperature 75 <----> 110°C (167 <-----> 230°F)
Intake manifold pressure change during 50 secs </=1.95 kPa (14.6 mmHg, 0.575 inHg)
Learning value of EVAP cone, during purge </= 1.0
Cumulative time of canister purge after engine start 20 seconds or more
Continuous period after canister purge starting 10 seconds or more
Intake air pressure >/= Map 3