A02277
EGR Vacuum Modulator
Vacuum Gauge
--
DIAGNOSTICS
ENGINE (2RZ--FE, 3RZ--FE)
DI--179
INSPECTION PROCEDURE
W hen using hand -- held tester
1 Ch eck th e co n n ectio n o f vacu u m h o se.
NG
Repair or replace.
OK
2 Ch eck th e vacu u m b etween EGR valve an d VSV fo r EGR at 3,000 rp m.
PREPARATION:
(a)
Using a 3--way connector, connect a vacuum gauge to the
hose between VSV and EGR valve.
(b)
Warm up the engine to above 80
˚
C (176
˚F)
.
CHE CK:
Check the vacuum at 3,000 rpm.
OK:
Vacuum:10 kPa (75 mmHg, 3.0 in.Hg)
OK
Prceed to next circuit inspection shown on
NG
CLICK HERE TO VIEW CHAPTER INDEX
Pages From Supplement
3RZ-F,3RZ-FE