Fault Codes,need help

[L3WJX]

After getting a judder from my car i had another look on another vag-com for fault codes and had a few come up,need help as i dont no what there are and mean ?

1-16486 mass airflow,But had a new one fitted about 6 months ago,mabie i unpluged but car would not of been running ?

2-16514 Bank 1 Sensor 1,dont no what this is ? What could i do to fix it ?

3-00561 mixture adjustment,dont no how to fix this and what this means ?

4-18010 Power Supply Terminal 30: voltage too low intermitten,what could this mean and how to fix ?

If any body could help would be great thanks alot

 

[leshkin]

For future reference, this site is what you need - Ross-Tech Wiki

16486/P0102/000258 - Mass Air Flow (MAF) (G70): Signal too Low

16486/P0102/000258 - Ross-Tech Wiki

16514/P0130/000304 - Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit

16514/P0130/000304 - Ross-Tech Wiki

.... you get the idea

 

[ScottyP45]

4-18010 Power Supply Terminal 30

12v feed to the ECU may be corroded or damaged, thats the code for low power or power fault from ignition main feed to the ecu so your ignition switch could be to blame too.