Manifold Absolute Pressure Sensor (Map Sensor) Inspection - Suzuki Wagon R Plus RB310 Service Manual

ENGINE AND EMISSION CONTROL SYSTEM (M13 ENGINE) 6E2-29
Manifold absolute pressure sensor (MAP sensor)
inspection
1) Disconnect connector from MAP sensor (1).
2) Remove MAP sensor (1).
3) Arrange 3 new 1.5 V batteries (2) in series (check that total
voltage is 4.5 – 5.0 V) and connect its positive terminal to
"Vin" terminal 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 (When input voltage is 4.5 – 5.5 V, ambient
temp. 20 – 30°C, 68 – 86°F)
ALTITUDE
(Reference)
(ft) (m)
0 0
| |
2 000 610
2 001 611
| |
5 000 1 524
5 001 1 525
| |
8 000 2 438
8 001 2 439
| |
10 000 3 048
If check result is not satisfactory, replace MAP sensor (1).
4) Install MAP sensor (1) securely.
5) Connect MAP sensor (1) connector securely.
4. Digital type voltmeter
BAROMETRIC
PRESSURE
(mmHg) (kPa)
760 100
| |
707 94
Under 707 94
over 634 |
85
Under 634 85
over 567 |
76
Under 567 76
over 526 |
70
OUTPUT
VOLTAGE
(V)
3.3 – 4.3
3.0 – 4.1
2.7 – 3.7
2.5 – 3.3