Toyota ZZT230 series, Repair Manual

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Dl-124
INSPECTION PROCEDURE
HINT:
-
•
If
DTC P1349 is displayed, check left bank VVT system circun.
•
Read freeze frame data using TOYOTA han�eld tester or OBD II scan tool. Because freeze frame
records the engine conditions when the malfunction is detected, when troubleshooting It is useful for
determining whether the vehicle was running or stopped, the engine warmed up or not, the air-fuel
ratio
lean or rich, etc. at the time of the malfunction.
TOYOTA
hand-held tester
1 Check valve timing (See page EM-18).
2
Check operation of OCV.
PREPARATION:
(a)
Start the engine
and
warmed it up.
Repair valve liming.
(b)
Connect the TOYOTA hand-held tester and select
VVT
from ACTIVE TEST menu.
CHECK:
Check the engine speed when operate the OCV by the TOYOTA hand-held tester.
OK:
OCVIs OFF:
Nonnal engine speed
OCVIs ON:
Rough Idle or engine stall
B
VVT
system Is OK.•
*:
DTC P1349 is also output after the foreign object is caught
in some part of the system in the engine oil and the system re�
turns to normal in a short time.
As ECM controls so that foreign
objects are ejected, there is no problem about
VVT
.
There is
also no problem since the oil filter should get the foreign object
in the engine oil.