4674 - P323F (DDE)

4674 - P323F

Information saved in
DDE

Fault code
4674 - P323F

Fault text
Fuel injection rate monitoring:

Fault description
Monitoring of calculated injection correction quantity.
The diagnostic trouble code is logged when the total
correction quantity minus the current value for the base
correction quantity rises above the limit value calculated
based on the current operating point (limit value roughly 25
mg, depends on injection quantity and actual air mass). The
monitoring function covers the injection quantities for all
cylinders and is determined using the lambda factor. The
EGR rate is used in an attempt to compensate for the
deviation in the injection quantity.

Condition for fault identification
Test condition:
The monitoring function is active when the injection
quantity monitoring is active.
Voltage condition:
The monitoring function is active when the injection
quantity monitoring is active.

Condition for fault memory entry
Debounce (5000 ms)

Action in service
-

Fault effect and breakdown warning
-

Driver information
Warning light:
MIL

Service instruction
none