Toyota 2H Repair Manual page 44

E M - 3 4
Ai r
E N G I N E M E C H A N I C A L - Engine T u n e - u p
I N S PEC T I O N O F I N T A K E S H UTTER [ 1 2H -TJ
1 . I N S PECT INTAKE SHUTTER A N D ACTUATOR
( a ) Fully close t h e t h rottle v a l v e , a n d check I h a t i t return
smoothly
(e)
(bl Apply vacuum to the actuator.
Check t h a t the vacuum does n o t drop im me d ia tely
I N SPECT V AC U U M SWITCH VALVE (VSV)
2 .
(a) Remove the VSV
{bl Check thaI a i r flow from pipe
(el C o nnect the VSV term i nals to the baltery terminals.
If
(d) Check t h a t a i r flows from pipe E 1 0 pipe G.
operation is not a s specified, replace t h e VSV.
E
to pipe F