64
Fault code dis-
played
System characteristics
Cause
Measures
90
■
Fuel too damp
■
Lambda probe inaccu-
rate
■
Logs poorly charged
■
Use suitable dry fuel
■
Recalibrate the Lambda probe
(see page 67)
■
Acknowledge with
d
91
■
Lambda probe heavily
soiled
■
Lambda probe faulty
■
PCB fault
■
Recalibrate the Lambda probe
(see page 67)
■
Acknowledge with
d
Troubleshooting
Fault display
(cont.)
5777 985 GB
Diagnosis