(a)
(b)
(c)
−
EMISSION CONTROL
EXHAUST GAS RECIRCULATION (EGR) SYSTEM
EC
−
13
1996 LAND CRUISER (RM451U)
15. INSPECT VSV OPERATION
(a)
Check that the air flows from pipe G to pipe E.
(b)
Apply battery voltage across the terminals.
(c)
Check that the air does not flows from pipe G to pipe E.
If operation is not as specified, replace the VSV.
16. RECONNECT VACUUM HOSES AND CONNECTOR
17. REINSTALL AIR INTAKE CHAMBER (See page
EM
−
54
)
18. DISCONNECT VACUUM HOSES FROM EGR VACUUM
MODULATOR
(a)
Disconnect the vacuum hose from R port.
(b)
Disconnect the vacuum hose from Q port.
(c)
Disconnect the vacuum hose from P port.
19. INSPECT EGR VACUUM MODULATOR OPERATION
(a)
Block ports P and R with your finger.
(b)
Blow air into port Q, and check that the air passes through
to the air filter side freely.
(c)
Start the engine, and maintain speed at 2,500 rpm.
(d)
Repeat the above test. Check that there is a strong resis-
tance to air flow.
If operation is not as specified, replace the EGR vacuum modu-
lator.
20. RECONNECT VACUUM HOSES TO EGR VACUUM
MODULATOR
(a)
Connect the vacuum hose to R port.
(b)
Connect the vacuum hose to Q port.
(c)
Connect the vacuum hose to P port.
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Version 1.00 - 12/21/2010