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Home >> Subaru >> 2006 >> Legacy GT spec.B >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0172 System Too Rich (Bank 1) >> Enable Condition

Enable Condition

ENABLE CONDITION

Secondary Parameters Enable Conditions
A/F main learning system In operation
Engine coolant temperature ≥ 70°C (158°F)
Engine load ≥ Value from Map 5
Intake air change during 0.5 engine revs. ≤ 0.02 g (0.001 oz)/rev
Learning value of EVAP cone, during purge ≤ 0.1
Cumulative time of canister purge after engine start 20 seconds or more
Continuous period after canister purge starting 30 seconds or more

Map 5 

MAP 5 SPECIFICATION

Engine speed (RPM) Idling 800 1200 1600 2000 2400 2800 3200 3600 4000 4400
Measured value (g(oz)/ rev) Non-turbo 0.236 (0.008) 0.232 (0.008) 0.226 (0.008) 0.231 (0.008) 0.252 (0.009) 0.262 (0.009) 0.243 (0.009) 0.243 (0.009) 0.267 (0.009) 0.270 (0.010)