Toyota 1 MZ–FE Manual page 589

Check fuel pressure control VSV.
Check for open and short in harness and connector between EFI
main relay and ECM (See page IN–31).
Check and replace ECM (See page IN–36).
1MZ–FE ENGINE – CIRCUIT INSPECTION
(1) Remove fuel pressure control VSV.
(2) Disconnect fuel pressure control VSV con–
nector.
(1) Measure resistance between terminals.
(2) Measure resistance between each terminal
and the body.
(1) Resistance: 26 – 46
(2) Resistance: 1 M
Check operation of fuel pressure control VSV
when battery positive voltage is applied to the ter–
minals of fuel pressure control VSV connector or
not.
Battery positive voltage is applied:
The air from pipe E is flowing out through the air
filter.
Battery positive voltage is not applied:
The air from pipe E is flowing out through pipe
G.
Replace fuel pressure control VSV.
Repair or replace harness or connector.
EG2–589
at 202C (682F)
or higher