2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 330
- Check fuel pressure
- Catalyst on one bank melted (visual inspection through O2
sensor fittings)?
Fault effect and breakdown warning
Driver information
Warning light:
MIL on in 2nd driving cycle
Service instruction
none
29F4
29F4 - P0420
Information saved in
DME
Fault code
29F4 - P0420
Fault text
Catalytic-converter conversion
Fault description
Catalyst System Efficiency Below Threshold (Bank 1)
Condition for fault identification
Test condition:
none
Terminal condition: none
Voltage condition:
none
Condition for fault memory entry
none
Action in service
none
Fault effect and breakdown warning
Driver information
Warning light:
none
Service instruction
none
29F5
29F5 - P0430
Information saved in
DME
Fault code
29F5 - P0430
Fault text
Catalytic-converter conversion 2
Fault description
Catalyst System Efficiency Below Threshold (Bank 2)
Condition for fault identification
