Kia Optima: Oil Pump Uni t(OPU) Description and Operation
| Description |
The oil pump main relay is installed within the HEV fusible
link box of the engine room. When the Oil Pump Unit (OPU) triggers the
oil pump main relay, electric current needed to operate the Electric Oil
Pump (EOP) passes through the Oil Pump Unit (OPU) and is supplied to
the Electric Oil Pump (EOP).
In general, the Electric Oil Pump (EOP) operation is
controlled by TCM via CAN communication, but in case of CAN
communication failure, there is a back-up hard wiring between the TCM
and Oil Pump Unit (OPU) as shown below.
Oil Pump Unit(OPU) Control System
Electric Oil Pump (EOP) Repair procedures
Removal
1.
Disconnect the 12V battery negative (-) cable.
2.
Remove the under cover (A).
Tightening torque :
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)
3.
Remove the electric ...
Oil Pump Uni t(OPU) Specifications
Specifications
Operating voltage (V)12 Current15 ~ 20A (normal), 45A (Max.)
...
See also:
Description and Operation
OBD-II review
1. OverviewThe California Air Resources Board (CARB) began regulation
of On Board Diagnostics (OBD) for vehicles sold in California beginning with
the 1988 model year. The first ...
Relay Box (Engine Compartment) Components and Components Location
Components
...
Reassembly
1.
Reassemble the CVVT assembly
(A) and camshaft (B).
Tightening torque :53.9
~ 63.7N.m (5.5 ~ 6.5kgf.m, 39.7 ~ 47.0lb-ft)
...
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