Toyota 3S-GE Repair Manual page 297

ENGINE — EFI SYSTEM EG'283
2. INSPECT POWER OUTPUT OF VACUUM SENSOR
/_';=PU'S_/9 O (a) Turn the ignition switch ON.
@100 ¢
' / " I > *1§~ \\'
Z
P136613
Wm
vex
Disconnec
'MM/M
I
I"
P1397?
(b) Disconnect the vacuum hose from the vacuum
senson
$207
Vacuum
SW20
Vacuum kpa
\
A ~..
'ta
1/ti t " we
\ ' li
ECU PW, I in.Hg 3.94 7.87) l11.s1l
I V°'"'9° 0.3~0.5 0.7-0.9 1.1 -1.3 1.5-1.7 1.9_2.1
Voltmeter " 1 I ~— - d V
fiw mp
(6)
I Vacuum 13.3 26.7 40.0 53.5 66.7 l
Connect a voltmeter to terminals PIM and E2 of the
ECU, and measure the output voltage under ambient
atmospheric pressure. »
Apply vacuum to the vacuum sensor in 13.3 kPa (100
mmHg, 3.94 in.Hg) segments to 66.7 kPa (500 mmHg,
19.69 in.Hg).
Measure the voltage drop from step (c) above for each
segment.
Voltage drop
I (c)
id)
Applied
mmHg 100 200 300 (400 > < 500 5
15.75 19.69
PI"/344 ' E 2 \)Q(14g4
P0559O
Pl'/927
<>%_—Ql
lfi
Z128C6
SQ
watt
Reconnect
\
P1397?
(f) Reconnect the vacuum hose to the vacuum sensor.