Supply voltage D for injectors

[vajper]

Seems like everything is failing with this car lately.

While driving home today, engine went into limp mode and the glow plug warning light started flashing. Was just around the corner so I drove home.

A VCDS scan gives the following errors on the second ECU (Engine II):

012376 - Exhaust Gas Recirculation System 2
P3058 - 000 - Insufficient Flow Detected - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Fault Frequency: 254
Reset counter: 255
Mileage: 283164 km
Time Indication: 0
Date: 2021.05.18
Time: 19:50:46

Freeze Frame:
RPM: 630 /min
Torque: 85.8 Nm
Voltage: 12.69 V
Voltage: 4.10 V
Duty Cycle: 100.6 %
Duty Cycle: 0.4 %
Lambda: 1.2 %

004166 - Supply Voltage D for Injectors
P1046 - 014 - Circuit Malfunction - Intermittent
Freeze Frame:
Fault Status: 00101110
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 283172 km
Time Indication: 0
Date: 2021.05.19
Time: 19:35:42

Freeze Frame:
RPM: 1848 /min
Torque: 222.3 Nm
Speed: 29.5 km/h
Inj. Quantity: 17.6 mg/str
Voltage: 14.14 V
Pressure: 724.5 bar

008600 - Oxygen (Lambda) Sensor B2 S1
P2198 - 002 - Signal too High (Rich)
Freeze Frame:
Fault Status: 01110010
Fault Priority: 0
Fault Frequency: 48
Reset counter: 255
Mileage: 283172 km
Time Indication: 0
Date: 2021.05.19
Time: 19:35:46

Freeze Frame:
RPM: 1386 /min
Torque: 3.9 Nm
Speed: 35.4 km/h
Duty Cycle: 0.4 %
(no units): 12.9
(no units): 1.0
(no units): 16.0


The first error (EGR flow) already has it's own thread in this forum (with no solution). The two following are new. Never seen them before. After restarting engine, no error but I have a gut feeling it will be back sooner rather than later.

Really have no clue what this is about, Google doesn't give me any hints. Anybody here who has an idea?