Strange Code Combo

[lkv0315]

Looking for some insight into what I've got going on here, I have a Service Engine Soon light that comes on seemingly at random on longer drives. I have scan results from PAsoft/BMWScanner1.4
Car is a 3.0
I have put the codes that are suspect in bold (since as far as I know the trimming/exhaust temp happen every time I scan the car after a drive for years now). I also may not understand exactly how PA soft communicates which codes are current, so my issue may be as simple as the EC/F2 code that is present above the shadow codes line.

I don't even know where to start with this as the codes all seem unrelated and none of them had ever shown up before I had the service engine soon light on.
I figured I would see if someone else had a similar combo of codes and how they managed to fix it
Car runs fine even while the engine light is on, so I don't even know if there's a fault at all.

Also in regards to the oil pressure code, wouldn't that trigger the oil light on the dash? Seems strange that it only shows up in the IKE codes

Any help would be great as I'd rather not keep clearing the code and inadvertently end up with some kind of catastrophic failure as a result

I have the Bentley manual for the E53 and the diagnostic codes in the back of the book don't align with any of the codes that are present.

Finally, I used a generic scan tool and it gave me an error that was completely unrelated (but I cant remember what it was)
================================================== =================
First Time:
DME -> EC/F2 - Trimming, oxygen sensor before catalyst, bank 2, too great in rich range
Shadow-memory:
EC/F2 - Trimming, oxygen sensor before catalyst, bank 2, too great in rich range
5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative
5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative
5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative
3F/14 - Control unit self-test 3
3E/12 - Solenoid valve, secondary air, short circuit to negative or open circuit
7D/01 - Electric fan, fault


IKE -> 11/44 - Acoustic transmitter disconnected (gong tone 1/2/3)
44/88 - Oil-pressure sensor
================================================== =================
Second Time:
DME -> EC/B2 - Trimming, oxygen sensor before catalyst, bank 2, too great in rich range
Shadow-memory:
EC/B2 - Trimming, oxygen sensor before catalyst, bank 2, too great in rich range
5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative
5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative
5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative
3F/14 - Control unit self-test 3
53/14 - Crankshaft sensor, no signal
3E/12 - Solenoid valve, secondary air, short circuit to negative or open circuit
7D/01 - Electric fan, fault

IKE -> 11/44 - Acoustic transmitter disconnected (gong tone 1/2/3)
44/88 - Oil-pressure sensor
================================================== =================
Third Time:
DME -> EC/B2 - Trimming, oxygen sensor before catalyst, bank 2, too great in rich range
Shadow-memory:
EC/B2 - Trimming, oxygen sensor before catalyst, bank 2, too great in rich range
5A/12 - Exhaust temperature before catalyst, bank 1, signal line, short circuit to negative
5B/12 - Exhaust temperature before catalyst, bank 2, signal line, short circuit to negative
5D/12 - Exhaust temperature after catalyst, bank 2, signal line, short circuit to negative
3F/14 - Control unit self-test 3
53/14 - Crankshaft sensor, no signal
3E/12 - Solenoid valve, secondary air, short circuit to negative or open circuit
7D/01 - Electric fan, fault

IKE -> 11/44 - Acoustic transmitter disconnected (gong tone 1/2/3)
44/88 - Oil-pressure sensor