Subaru IMPREZA 2002 Service Manual page 481

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
Yes
Inspect DTC
PO1 82 or PO1 83
using "List of Diag-
nostic Trouble
Code (DTC)".
<Ref. to
List of Diagnostic
Trouble Code
(DTC).>
NOTE:
In this case, it is
not necessary to
inspect DTC
PO1 81.
EN(S0HC)-77,
No
Replace the fuel
temperature sen-
sor. <Ref. to
EC(S0HC)-8, Fuel
Temperature Sen-
sor.>
Step
1
CHECK ANY OTHER DTC ON DISPLAY.
EN(S0HC)-157
Check
Does the Subaru Select Moni-
tor or OBD-II general scan tool
indicate DTC PO1 82 or PO1 83?