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Home >> Subaru >> 2021 >> Forester Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0304: Cylinder 4 Misfire Detected >> General Description >> Execution Condition

Execution Condition

Secondary parameters Execution condition
Battery voltage
Fuel shut-off
Engine speed
Intake manifold pressure
Time elapsed after engine start
Following condition A or B is met
A: Engine coolant temperature at engine starting
B: Following conditions (bl) and (b2) are met
(b1) Engine coolant temperature at engine starting
(b2) Engine coolant temperature
8V or more
Not in operation
475 rpm - 6100 rpm
More than value of Mapl
2 crankshaft revolution or more
More than -7°C (19.4°F)
-7°C (19.4°F) or less
21°C (69.8°F) or more

Map1