Suzuki Swift - MAP Sensor Individual Check

6-1-44 ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13)
MAP Sensor Individual Check
1) Disconnect coupler from MAP sensor (1).
2) Remove MAP sensor (1).
3) Arrange 3 new 1.5 V batteries (2) in series (check that total volt-
age is 4.5 – 5.0 V) and connect its positive terminal to “Vin” termi-
nal of sensor and negative terminal to “Ground” terminal. Then
check voltage between “Vout” and “Ground”.
Also, check if voltage reduces when vacuum is applied up to 400
mmHg by using vacuum pump (3).
Output voltage (Vin voltage 4.5 – 5.5 V, ambient temp. 20 –
30_C, 68 – 86_F)
ALTITUDE
BAROMETRIC OUTPUT
(Reference) PRESSURE VOLTAGE
(ft) (m) (mmHg) (kPa) (V)
0
j
0
j
760
j
100
j
33 4 3
j
2 000
j
610
j
707
j
94
3
.
3
–
4
.
3
2 001
j
611
j
Under 707
94
j
30 4 1
j
5 000
j
1 524
over 634
j
85
3
.
0
–
4
.
1
5 001
j
1 525
j
Under 634
85
j
27 3 7
j
8 000
j
2 438
over 567
j
76
2
.
7
–
3
.
7
8 001
j
2 439
j
Under 567
76
j
25– 33
j
10 000
j
3 048
over 526
j
70
2
.
5
–
3
.
3
If check result is not satisfactory, replace MAP sensor (1).
4) Install MAP sensor (1) securely.
5) Connect MAP sensor (1) coupler securely.