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XDI200 Manual Version 0.1
- Page 48 -
©2017 Electromotive, Inc.
cylinders themselves. A third option would be to use a
manifold air temperature
sensor in a sheet
metal “stove” on one of the cylinders.
Figure 50.
Sensor resistance vs. temperature for CLT and MAT sensor.
Fig. 51.
Coolant temperature sensor wiring.
Wiring the Coolant temperature sensor is straightforward. See
Figure 51
for details.
Since the sensor is just a resistor, wires “A” and “B” can be switched with no adverse results.
To test for faulty coolant temperature sensors, simply measure the resistance across
terminals A and B with an ohmmeter. Match the resistance of the sensor to the operating
temperature using
Table 5
. As a guideline, use the following specs:
Cold engine (70F, 20C): ~3300
Hot Engine (180F, 80C): ~350
Resistance Curve for MAT & CLT Sensors
10
100
1000
10000
100000
-40
0
40
80
120
160
200
240
280
Temperature,
o
F
R
e
s
is
ta
n
c
e
,
O
h
m
s
Resistance Curve for MAT & CLT Sensors
10
100
1000
10000
100000
-40
-20
0
20
40
60
80
100
120
140
Temperature,
o
C
R
es
ist
an
ce
, Oh
m
s
