Field Remedy: 1529
| Subject: |
All Z engines - Overrun fuel cutoff device
temporarily not active |
| Models: |
Engines: |
Option: |
| All 2001... |
Z10XE| Z12XE| Z14XE| Z16XE| Z16YNG| Z18XE|
Z18XEL| Z16SE| Z22SE| Z22XE| Z32SE| Z20LET |
None |
| Complaint: |
Temporary no overrun. |
| Cause: |
Normal engine caracteristic. |
| Production: |
|
Remedy:
In case of complaint inform the customer about the modified engine
characteristic to protect the catalytic converter. Since introduction of
the EOBD functionality (MY 2001) the engine management of all Z-engines
was adapted as follows:
When the catalytic converter reaches a critical temperature the overrun
fuel cut-off device will be deactivated to avoid early ageing of the cat.
This happens especially in lean combustion operation e.g. in overrun
condition after high speed drive. The a.m. description is also included
in the owners manual since Vectra-C (page 181) and will be introduced for
all other carlines step by step.
| FunctionalGroup: |
J - Engine |
| Complaint Group: |
19 - Poor Engine Driveability |
| Trouble Code: |
None |
|
