Toyota 4A-FE Repair Manual page 155

4A-FE (2WD)
Voltmeter
[ VJ
: ? J
EFI SYSTEM -
Electronic Control System
Fl-141
(c)
Connect a voltmeter to terminals PIM and E2 of the
ECU, and measure and record the output voltage
under ambient atmospheric pressure.
(d) Apply vacuum to the vacuum sensor in 100 mmHg
(3.94 in.Hg, 13 .3 kPa) segments to 500 mmHg
(19 .69 in.Hg, 66.7 kPa}.
(e) Measure voltage drop from step (c) above for each
segment.
Voltage drop
Applied
Vacuum
100 200
mmHg
( 3.94)
( 7 .87)
(in.Hg,)
13.3
26.7
kPa
Voltage
0.3-0.510.7-0.9
drop V
E ' . L - Vee
(
4 L - .
··~IM
- · (') : \ (J-:i....v-
._ o :
L.
Ga .
..ir
- v 1
~
-
():~ ~
- c .5
~
-
Q . , ~ ~
~
t:>
-~
lx:ur-
-
01~ G-~
y. '1~
v
~.Gl v
·2>, ·L3 v
~.a8'
v
" - L
s·1
i/
"\
(_;
L., .....
0
v
'11<:.l 2...
v
I,~
t
v
I ,3S
v
i,
l3
v
I
300 400 500
(11 .81 )
40.0
(15.75)
53.3
(19.69)
66.7
1.1-1.3 1.5-1.7 1.9-2.l