Subaru 2002 IMPREZA Service Manual page 511

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Check
Does the Subaru Select Moni-
tor or OBD-ll general scan tool
indicate P I 088, P I 089, P I 094
or P1095?
Does the tumble generator
valve move smoothly? (No dirt
or foreign materials clogged)
CA:DTC PI091 -TUMBLE GENERATOR VALVE SYSTEM #I (RH) MALFUNC-
TION (STUCK CLOSE)
-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(D0HC TURBO)-
49, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(D0HC TURBO)-46, Inspec-
Immediately at fault recognition
Yes
Inspect DTC
P I 088, P I 089,
P I 094 or P I 095
using List of Diag-
nostic Trouble
Code (DTC) <Ref.
to EN(D0HC
TURBO)-80, List
of Diagnostic Trou-
ble Code (DTC).>
Replace the tum-
ble generator valve
assembly. <Ref. to
FU( DOHC
TURBO)-40, Tum-
ble Generator
Valve Assemblw
tion Mode.>.
Step
1 CHECK ANY OTHER DTC ON DISPLAY.
2 CHECK TUMBLE GENERATOR VALVE RH
1 )Remove the tumble generator valve assem-
bly.
2)Check tumble generator valve body.
No
Go to step
2.
Clean tumble gen-
erator valve.
EN( DOHC TURB0)-287