Porsche 928 Workshop Manual page 74

928 Maintenance, Self-diagnosis
03
Error code list for the LH control
unit
EITO~ code Error path
1500
1000
1111
No fault
Output terminated
Supply voltage too low I high
Idle contact 1112
a
1113
1114
1121
Engine temperature sensor
Air-flow sensor
1122
1123
Rotary idle controller
Lambda control detects too rich a mixture
1124
Lambda control detects too lean a mixture
1125 Lambda probe
Full load contact
a
The digit 2 may also appear in the second error code digit position (e.g. 1211) indicating "sporadic
errof', i.e. an occasionally occurring fault.
This does not apply to error code 1000 and 1500.
a
Error code list for the LH control unit
03 - 27
Printed in Germany - XX, 1988