Engine
Fuel system
Marea- Marea Weekend &
99 range
INTAKE AIR TEMPERATURE AND PRES-
SURE SENSOR
The intake air temperature and pressure sensor
is an integrated component which has the task
of measuring the pressure and the temperature
of the air inside the inlet manifold. Both pieces
of information are used by the injection control
unit in defining the quantity of air drawn in by
the engine; this information is then used for
calculating the injection time and the point of
ignition. The sensor is fitted on the inlet
manifold.
Temperature (°C)
Resistance (M)
-40
52600-38700
-20
17500-13500
0
6500-5300
10
4200-3400
20
2700-2300
30
1850-1550
40
1300-1050
50
920-750
60
650-530
80
360-290
100
210-160
Connector wiring
Checking resistance
The table at the side contains the resistance
values which the temperature sensor (NTC
type thermistor) can assume according to the
temperature. These values can be measured by
connecting an ohmmeter as illustrated in the
diagram.
26
Print n° 506.763/14
Summary of Contents for 1998 Marea Weekend
Page 10: ......
Page 83: ......
Page 90: ......
Page 95: ......
Page 133: ...f c...
Page 298: ...Engine Fuel system Marea Marea Weekend ft 99 update 3N30GJ01 3N30GJ02 28 Print n 506 763 15...
Page 342: ...Marea Marea Weekend 99 range Engine Fuel system Copyright by Fiat Auto 17...
Page 391: ......
Page 398: ...Engine Fuel system Marea Marea Weekend 99 range 6 Print n 506 763 14...
Page 420: ......
Page 452: ......
Page 470: ...I...
Page 499: ......
Page 501: ......
Page 580: ......
Page 656: ......
Page 788: ......