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)
If check result is not satisfactory, replace MAP sensor (1).
4) Install MAP sensor (1) securely.
5) Connect MAP sensor (1) connector securely.
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. Digital type voltmeter
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