3071 - P029F (DME)

3071 - P029F

Information saved in
DME

Fault code
3071 - P029F

Fault text
Cylinder equalization via irregular running, cylinder 2

Fault description
Cylinder 2 Balance - Fuel Trim at Min Limit

Condition for fault identification
Test condition:
Stratified operation, load range for consistency equalization
defined: Case 1 Steady-state operation at approximately 80 -
120 km/h; Case 2: Idle speed
Terminal condition: Terminal 15, engine running
Voltage condition:
none

Condition for fault memory entry
30

Action in service
Injector replacement, compression test, teflon ring analysis
(a defective teflon ring will cause obvious soot accumulation
on the ignition coil adjacent to the plug, caused by escaping
exhaust gas), test of exhaust back-pressure

Fault effect and breakdown warning


Driver information
Warning light:
No action

Service instruction
none