Subaru 2002 IMPREZA Service Manual page 418

i
DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Go to step 7.
Go to step 8.
Replace the cam-
shaft sprocket.
<Ref. to
ME(D0HC
TURBO)-57, Cam-
shaft Sprocket.>
Repair installation
condition of timing
belt. <Ref. to
ME(D0HC
TURBO)-48, Tim-
ing Belt Assem-
bly.>
No
Replace the cam-
shaft position sen-
sor. <Ref. to
FU(D0HC
TURBO)-31, Cam-
shaft Position Sen-
sor.>
Tighten camshaft
position sensor
installation bolt
securely.
Go to step 9.
Replace the cam-
shaft position sen-
sor. <Ref. to
FU(D0HC
TURBO)-31, Cam-
shaft Position Sen-
sor.>
TlON SENSOR.
Turn the ignition switch to OFF.
Step
CHECK CAMSHAFT POSITION SENSOR.
1)Remove the camshaft position sensor.
2)Measure the resistance between connector
terminals of camshaft position sensor.
Terminals
NO. 1
-NO.
2:
CHECK CONDITION OF CAMSHAFT POSI-
installation bolt tightened
securely?
Check
Is the resistance between 1
and 4 kR?
Is the camshaft position sensor
CHECK CAMSHAFT SPROCKET.
Remove the front belt cover. <Ref. to
ME(S0HC)-46, Belt Cover.>
CHECK INSTALLATION CONDITION OF
TIMING BELT.
Turn the camshaft using ST, and align align-
ment mark on camshaft sprocket with align-
ment mark on timing belt cover LH.
ST 4992071 00 CAMSHAFT SPROCKET
WRENCH
Are camshaft sprocket teeth
cracked or damaged?
Is the timing belt dislocated
from its proper position?
EN(D0HC TURBO)-I 94