Toyota Celica 2005 Repair Manual page 257

DI−58
OBD II scan tool (excluding hand−held tester):
1 Check valve timing (Check for loose and jumped tooth of timing chain)
(See page EM−16).
OK
2 Check operation of OCV.
(a)
OCV Connector
(b)
(−)
(+)
A09088
A09089
1
2005 CELICA (RM1131U)
DIAGNOSTICS − ENGINE (1ZZ−FE)
NG Adjust valve timing.
PREPARATION:
Start the engine.
CHECK:
(a) Check the engine speed when disconnect the OCV con-
nector.
(b) Check the engine speed when apply battery positive volt-
age between terminals of OCV.
RESULT:
Result
1
2
2 Replace OCV.
A09101
256
Check (a)
Normal engine speed Rough idle or engine stall
Except 1
Check (b)