EN(H4DOTC)(diag)-316
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
13
CHECK MASS AIR FLOW AND INTAKE AIR
TEMPERATURE SENSOR.
1) Start the engine and warm up engine until
coolant temperature is higher than 75°C
(167°F).
2) For AT models, set the select lever to “P”
range or “N” range, and for MT models, place
the shift lever in the neutral position.
3) Turn the A/C switch to OFF.
4) Turn all the accessory switches to OFF.
5) Read the data of the mass air flow and
intake air temperature sensor signal using Sub-
aru Select Monitor or general scan tool.
NOTE:
• Subaru Select Monitor
For detailed operation procedures, refer to
“READ CURRENT DATA FOR ENGINE”. <Ref.
to EN(H4DOTC)(diag)-34, Subaru Select Moni-
tor.>
• General scan tool
For detailed operation procedures, refer to the
general scan tool operation manual.
Is the measured value 2.0 —
5.0 g/s (0.26 — 0.66 lb/s) ?
Go to step
14
.
Replace the mass
air flow and intake
air temperature
sensor. <Ref. to
FU(H4DOTC)-39,
Mass Air Flow and
Intake Air Temper-
ature Sensor.>
14
CHECK MASS AIR FLOW AND INTAKE AIR
TEMPERATURE SENSOR.
1) Start the engine and warm up engine until
coolant temperature is higher than 75°C
(167°F).
2) For AT models, set the select lever to “P”
range or “N” range, and for MT models, place
the shift lever in the neutral position.
3) Turn the A/C switch to OFF.
4) Turn all the accessory switches to OFF.
5) Open the front hood.
6) Measure the ambient temperature.
7) Read the data of the mass air flow and
intake air temperature sensor signal using Sub-
aru Select Monitor or general scan tool.
NOTE:
• Subaru Select Monitor
For detailed operation procedures, refer to
“READ CURRENT DATA FOR ENGINE”. <Ref.
to EN(H4DOTC)(diag)-34, Subaru Select Moni-
tor.>
• General scan tool
For detailed operation procedures, refer to the
general scan tool operation manual.
Subtract ambient temperature
from intake air temperature. Is
the obtained value –10 — 50°C
(–18 — 90°F)?
Go to step
15
.
Check the mass air
flow and intake air
temperature sen-
sor. <Ref. to
FU(H4DOTC)-39,
Mass Air Flow and
Intake Air Temper-
ature Sensor.>
Step
Check
Yes
No
Содержание 2009 IMPREZA
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Страница 23: ...NT 6 Note NOTE A Front B Rear 1 Front crossmember 2 Rear differential 1 2 A B NT 00210...
Страница 25: ...NT 8 Note NOTE TIE DOWN HOOK EYE BOLT A Front tie down hook B Rear tie down hook C Eye bolt NT 00213 A B C...
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Страница 112: ...PM 48 A C Filter PERIODIC MAINTENANCE SERVICES...
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Страница 725: ...EN H4SO diag 308 General Diagnostic Table ENGINE DIAGNOSTICS...
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Страница 2730: ...AC 50 General Diagnostic Table HVAC SYSTEM HEATER VENTILATOR AND A C...
Страница 2940: ...OD diag 28 Diagnostic Procedure with Diagnostic Trouble Code DTC OCCUPANT DETECTION SYSTEM DIAGNOSTICS...
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Страница 3286: ...CC 12 Neutral Position Switch CRUISE CONTROL SYSTEM...
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