Diagnostic Procedure With Diagnostic Trouble Code (Dtc) - Subaru 2002 IMPREZA Service Manual

-
Step Check
#
CHECK HARNESS BETWEEN MASS AIR
FLOW AND INTAKE AIR TEMPERATURE
Is the resistance less than 5
R?
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Replace the mass
air flow and intake
SENSOR AND ECM CONNECTOR.
1)Turn the ignition switch to OFF.
2)Measure the resistance of harness between
mass air flow and intake air temperature sen-
sor and engine ground.
Connector & terminal
(83) No. 5
-
Engine ground:
air temperature
sensor. <Ref. to
FU(D0HC
TURBO)-34, Mass
Air Flow and
Intake Air Temper-
ature Sensor.>
No
Repair harness
and connector.
NOTE:
In this case, repaii
the following:
Open circuit in
nessbetween
mass air flow and
intake air tempera-
ture sensor and
ECM connector
Poor contact in
mass air flow and
intake air tempera.
ture sensor
Poor contact in
ECM
Poor contact in
ioint connector
EN(D0HC TURBO)-124