passat 1.6 ecu faults

[msienicki]

Hi guys, I have problem with passat ecu, because after while (week , two weeks) this same fault come back to ecu.

16556 - Fuel Trim; Bank 1: System Too Rich
P0172 - 35-10 - - - Intermittent
17811 - EGR System: Regulation Deviation
P1403 - 35-00 - -
16500 - Engine Coolant Temp. Sensor (G62): Implausible Signal
P0116 - 35-10 - - - Intermittent
16804 - Catalyst System; Bank 1: Efficiency Below Threshold
P0420 - 35-00 - -
16486 - Mass Air Flow Sensor (G70): Signal too Low
P0102 - 35-10 - - - Intermittent
16556 - Fuel Trim; Bank 1: System Too Rich
P0172 - 35-10 - - - Intermittent

Readiness: 0000 0000

Somebody has this same issue? I have to look today but Im not sure where problem can be wirening or ecu (one sensor mux has dry solder).

[smirnoff_rules]

looks like an air leak ? worth checking pipes all over , mass air flow are common on these tho

[Liteace]

check oil level is not to high

[oldford]

What's the coolant temperature in live data? With the engine standing overnight before the first start and when warm?
What's the amount of airflow in live data?