Porsche 944 - Manual (Page 34)

03
Maintenance, Self-diagnosis 944
Display
0°C =
15 - 30°C =
80°C =
100°C =
4400 -
1400 -
250 -
160 -
6800
3600
390
21
If the values are not reached in this testing
step, measurement must be carried out
directly on the engine temperature sensor.
The engine temperature sensor (NTC 2) in-
forms the control unit about the current
engine
temperature. It results in mixture enrichment
during cold starts or hot running.
Error code 1121
This error code draws attention to an error in
the area of the air-flow sensor.
87/907
Possible errors:
Ground fault
Short to positive
Wire discontinuity
During this test, the plug af the DME
control unit must be plugged in.
03 - 22 Troubleshooting
Printed in Germany - XVI, 1987