Kia 2004.5 Spectra Service Technical Training page 71

2004.5 Spectra Technology
OIL CONTROL VALVE (OCV)
Powertrain
each camshaft. Next a chain auto-tensioner is
installed between the 2 camshafts to keep chain
tension. The auto tension must be compressed with
locking pin prior to installation on cylinder head.
The Oil-flow Control Valve (OCV) is a 12V electromagnetic
coil operated spool valve mounted on the cylinder
head. The amperage draw of the 7.4 ohm coil is 100
to 1000 mA based upon engine load. The PCM commands
the duty cycle using the engine RPM, MAF and oil
temperature inputs to determine the engine load.
The OCV receives 12V from the engine compartment
main relay and same 15A fuse that power the fuel
injectors in the under hood fuse/relay box. The OCV
groundside is duty cycled ON by the PCM. The PCM
controls the OCV much the same way an A/T solenoid
controls a valve through duty cycle.
N N o o t t e e : : T T h h e e O O C C V V o o p p e e r r a a t t i i o o n n c c a a n n b b e e c c h h e e c c k k e e d d
t t h h r r o o u u g g h h H H i i - - S S c c a a n n P P r r o o a a c c t t i i v v a a t t i i o o n n o o r r r r e e m m o o v v e e d d f f r r o o m m
t t h h e e c c y y l l i i n n d d e e r r h h e e a a d d . . A A p p p p l l y y B B - - t t o o p p i i n n # # 2 2 a a n n d d
b b r r i i e e f f l l y y c c o o n n t t a a c c t t B B + + t t o o p p i i n n # # 1 1 . . T T h h i i s s w w i i l l l l m m o o v v e e t t h h e e
s s p p o o o o l l v v a a l l v v e e o o u u t t w w a a r r d d . . R R e e m m o o v v e e B B + + a a n n d d t t h h e e s s p p o o o o l l
v v a a l l v v e e w w i i l l l l r r e e t t u u r r n n t t o o i i t t s s o o r r i i g g i i n n a a l l p p o o s s i i t t i i o o n n . .
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