Porsche 928 Workshop Manual page 77

928
Maintenance, Self-diagnosis
03
Error code 2114
Display:
This error code indicates a fault in the area of
the engine temperature sensor.
32°F = 4400 R- 68000
59-66°F = 1400& 3600D
104°F =
lOOO~L- 1300n
176°F =
250 R - 290 fl
212°F =
loon- 210 n
If these values are not achieved during this test-
ing step, measurement must be carried out
directly on the engine temperature sensor.
Possible faults
Note:
Always measure the resistance of the engine
temperature sensor between the contact lug
and the housing as this contains two tempera-
ture sensors, independent from one another.
The engine temperature sensor advances the
spark angle when the engine is cold for im-
proved running.
Short-circuit to ground
Short-circuit to positive
Break in the circuit
Defective engine temperature sensor
Testing the engine temperature sensor
Ignition off
Disconnect the plugs from the EZK control
unit and the LH control unit.
Connect an ohmmeter between terminal 19
and terminal 18 of the EZK control unit.
Trouble-shooting, EZK control unit
Printed in Germany - XX, 1988
03 - 31