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Home >> Subaru >> 2023 >> Forester Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (4 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2B08: Cold Start Cylinder 1 Injection Pulse Performance >> General Description >> Execution Condition

Execution Condition

SECONDARY PARAMETER AND EXECUTION CONDITION - DIAGNOSIS 1

Secondary parameters Execution condition
Battery voltage 10.9 V or more
Injection pulse interval (from finish to start) 4000μs or more
Throttle position Less than 0.25°
Integrated value of intake air amount Less than value of Map
Vehicle speed Less than 3000rpm
Fuel system status Not during fuel cut
TEMPERATURE SPECIFICATION - MAP

Coolant temperature at first engine start (°C (°F)) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86)
Integrated value of intake air amount (g (oz)) 947 (33.41) 879 (31) 811 (28.59) 745 (26.27) 669 (23.61) 608 (21.44) 571 (20.12) 578 (20.4)
TEMPERATURE SPECIFICATION

Coolant temperature at first engine start (°C (°F)) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Integrated value of intake air amount (g (oz)) 708 (24.95) 800 (28.22) 865 (30.51) 936 (33.02) 0 (0) 0 (0) 0 (0) 0 (0)
SECONDARY PARAMETER AND EXECUTION CONDITION - DIAGNOSIS 2

Secondary parameters Execution condition
Battery voltage 10.9 V or more
Injection pulse interval (from finish to start) 4000μs or more
Target injector current More than 4.5A
Throttle position Less than 0.25°
Integrated value of intake air amount Less than value of Map
Vehicle speed Less than 3000rpm
Fuel system status Not during fuel cut
TEMPERATURE SPECIFICATION - MAP

Coolant temperature at first engine start (°C (°F)) -40 (-40) -30 (-22) -20 (-4) -10 (14) 0 (32) 10 (50) 20 (68) 30 (86)
Integrated value of intake air amount (g (oz)) 947 (33.41) 879 (31) 811 (28.59) 745 (26.27) 669 (23.61) 608 (21.44) 571 (20.12) 578 (20.4)
TEMPERATURE SPECIFICATION

Coolant temperature at first engine start (°C (°F)) 40 (104) 50 (122) 60 (140) 70 (158) 80 (176) 90 (194) 100 (212) 110 (230)
Integrated value of intake air amount (g (oz)) 708 (24.95) 800 (28.22) 865 (30.51) 936 (33.02) 0 (0) 0 (0) 0 (0) 0 (0)