EC0ID-01
EC-14
-
EMISSION CONTROL
THREE-W AY CATALYTIC CONVERTER (TWC)
SYSTEM
1074
Author:
Date:
2001 SIENNA (RM787U)
THREE-W AY CATALYTIC CONVERTER (TWC) SYSTEM
ON-VEHICLE INSPECTION
1.
INSPECT EXHAUST PIPE ASSEMBLY
(a)
Check the connections for looseness or damage.
(b)
Check the clamps for weakness, cracks or damage.
2.
INSPECT TWC
Check for dents or damage.
If any part of the protector is damaged or dented to the extent that it contacts the TWC, repair or replace
it.
3.
INSPECT TWC HEAT INSULATOR
(a)
Check the heat insulator for damage.
(b)
Check for adequate clearance between the catalytic converter and heat insulator.
