Manifold Absolute Pressure Sensor - Suzuki WagonR+ RB310 Service Manual

6E1-18 ENGINE AND EMISSION CONTROL SYSTEM
1
2
4
1. MAP sensor
2. 1.5 V battery (4.5 V in total)
3. Vacuum pump
4. Digital type voltmeter

MANIFOLD ABSOLUTE PRESSURE SENSOR

(MAP SENSOR)
MAP SENSOR INDIVIDUAL CHECK
1) Disconnect MAP sensor vacuum hose from filter.
2) Disconnect coupler from MAP sensor.
3) Remove MAP sensor.
4) Arrange 3 new 1.5 V batteries 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
40 cmHg by using vacuum pump.
Output voltage (Vin voltage 4.5 – 5.0 V, ambient temp.
20 – 30_C, 68 – 86_F)
ALTITUDE
3
(Reference)
(ft)
0
|
2 000
2 001
|
5 000
5 001
|
8 000
8 001
|
10 000
If check result is not satisfactory, replace MAP sensor.
5) Install MAP sensor and connect vacuum hose securely.
6) Connect MAP sensor coupler securely.
BAROMETRIC
PRESSURE
(m) (mmHg)
0 760
| |
610 707
611
Under 707
|
over 634
1 524
1 525
Under 634
|
over 567
2 438
2 439
Under 567
|
over 526
3 048
OUTPUT
VOLTAGE
KPa (V)
100
| 3.1 – 3.6
94
94
| 2.8 – 3.4
85
85
| 2.6 – 3.1
76
76
| 2.4 – 2.9
70