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Home >> Subaru >> 2021 >> Ascent Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0234: Turbocharger/Supercharger "A" OVERBOOST Condition >> General Description >> Execution Condition

Execution Condition

SECONDARY PARAMETERS AND EXECUTION CONDITION - P0234

Secondary parameters Execution condition
Battery voltage 110.9 V or more
Barometric pressure 75.06 kPa (563.1 mmHg, 22.2 inHg) or more
Intake air temperature -10°C (14°F) or more and
Less than 70°C (158°F)
Boost pressure feedback In operation
SECONDARY PARAMETERS AND EXECUTION CONDITION - P0299

Secondary parameters Execution condition
Battery voltage 10.9 V or more
Barometric pressure 75.06 kPa (563.1 mmHg, 22.2 inHg) or more
Intake air temperature -10°C (14°F) or more and
Less than 70°C (158°F)
Boost pressure feedback In operation
Engine speed 2160 rpm or more
Target boost pressure Value of Map1 or more
ENGINE SPEED DESCRIPTION - MAP 1

Engine speed (rpm) 2160 2200 2400 2800 3200 3600
Target boost pressure (kPa (mmHg, inHg)) 108.6 (814.7, 32.1) 108.6 (814.7, 32.1) 112.9 (847, 33.3) 119 (892.7, 35.1) 124.4 (933.2, 36.7) 128.4 (963.2, 37.9)
Engine speed (rpm) 4000 4400 4800 5200 5600 6000
Target boost pressure (kPa (mmHg, inHg)) 129.6 (972.2, 38.3) 135.6 (1017.3, 40) 135.6 (1017.3, 40) 135.7 (1018, 40.1) 132 (990.2, 39) 131.3 (985, 38.8)