Fuel injection
9 - 78
NOYES
Reset or replace the
harness.
Check the connection to the
control unit.
Check the control unit feeds
If necessary,
replace la control unit.
YES
Start the engine and check that tension reduces progressively according to temperature
increase as per the table.
NOYES
The temperature signal
conforms.
Replace the
temperature sensor.
NOTE
For more in-depth control of the sensor, remove it from
the engine and check the controlled temperature resist-
ance.
Using a suitable container, immerse the metal part of
the sensor in water, heat gradually and read the tem-
perature and resistance values.
Check how they match with the table (see page 9-76).
AIR INTAKE TEMPERATURE SENSOR
Terminals Conditions Standard
18-22 air intake temperature 20° With sensor connected: 3750 ± 200 Ω
CIRCUIT DIAGRAM
3
2
A1
A2
B1
B2
22
4
18
11
1
4
1
CONTROL UNIT
THROTTLE POSITION SENSOR
AIR TEMPERATURE SENSOR
COOLANT TEMPERATURE SENSOR
3
4
1
2
To Next Page
Loading...
