Suzuki 2000 Grand Vitara SQ416, Руководство по обслуживанию

Страница: 629 / 729

YH4
GRAND
VITARA
ENGINE AND EMISSION CONTROL SYSTEM (H25 ENGINE) 6E2-41
MANIFOLD ABSOLUTE PRESSURE SENSOR
Inspection
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).
If check result is not satisfactory, replace MAP sensor (1).
Output voltage (Vin voltage 4.5 – 5.5 V, ambient temp. 20 –
30
_
C, 68 – 86
_
F)
ALTITUDE
(Reference)
BAROMETRIC
PRESSURE
OUTPUT
VOLTAGE
(ft) (m) (mmHg) (kPa) (V)
0
2 000
0
610
760
707
100
94
3.3 – 4.3
2 001
5 000
611
1 524
Under 707
over 634
94
85
3.0 – 4.1
5 001
8 000
1 525
2 438
Under 634
over 567
85
76
2.7 – 3.7
8 001
10 000
2 439
3 048
Under 567
over 526
76
70
2.5 – 3.3
4) Install MAP sensor (1) securely.
5) Connect MAP sensor (1) coupler securely.
CRANK SHAFT POSITION SENSOR
Removal / Installation
Refer to “ENGINE MECHANICAL” section.
Inspection
Refer to “ENGINE” section.