Vag code help

HELLO ALL, I just scanned my car using the VAG tool and would like help on what this means....this site is so helpful! Where can I find the meaning of the codes of how to fix myself. Many thanks!!

01-Engine -- Status: Malfunction 0010
2 Faults Found:
16826 - EVAP Emission Control Sys
P0442 - 007 - Small Leak - Intermittent
Freeze Frame:
Fault Status: 00000010
Fault Priority: 5
Fault Frequency: 2
Reset counter: 26
Mileage: 164324 km
Time Indication: 0
Date: 2014.07.02
Time: 08:55:19


Freeze Frame:
Lambda: 0.0 %
Temperature: 22.5∞C
Temperature: 91.5∞C
Speed: 75.0 km/h
Time: 588.8 s
Temperature: 704.0∞C


19545 - Signal Line for Fuel Pump Electronics
P3089 - 007 - Electrical Malfunction - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 2
Fault Frequency: 2
Reset counter: 40
Mileage: 0 km
Time Indication: 0


Freeze Frame:
RPM: 832 /min
Mass Air / Rev.: 81.8 mg/str
Temperature: 72.0∞C
Idle
Pressure: 1.4 bar
Speed: 0.0 km/h
------------------------------------------------------------------------------------
05-Acc/Start Auth. -- Status: Malfunction 0010
Subsystem 1 - Part No: 4F0 910 131 L
Component: FBSAUDIC6 EZS H43 0070


Subsystem 2 - Part No: 4F0 910 335
Component: FBSAUDIC6 KSG H26 0080


Subsystem 3 - Part No: 4F0 910 220 G
Component: FBSAUDIC6 IDG H44 0060


2 Faults Found:
00955 - Key 1
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 3
Fault Frequency: 2
Reset counter: 225
Mileage: 164370 km
Time Indication: 0
Date: 2014.10.16
Time: 05:49:14


00956 - Key 2
002 - Lower Limit Exceeded - Intermittent
Freeze Frame:
Fault Status: 00110010
Fault Priority: 3
Fault Frequency: 2
Reset counter: 197
Time Indication: 0

------------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 4F0-910-289.lbl
Part No SW: 4F0 910 289 E HW: 4F0 907 289 E
Component: Komfortgeraet H15 0100
Revision: 01000015 Serial number: 01002810530000
Coding: 0423997
Shop #: WSC 02335 785 00200
VCID: 2C572CF28F069C7E175-8079


Subsystem 1 - Part No: 1K0 951 605 C
Component: LIN BACKUP HORN H02 1301


1 Fault Found:
01134 - Alarm Horn (H12)
012 - Electrical Fault in Circuit
Freeze Frame:
Fault Status: 01101100
Fault Priority: 3
Fault Frequency: 254
Reset counter: 196
Mileage: 134749 km
Time Indication: 0
Date: 2004.10.25
Time: 11:48:29

------------------------------------------------------------------------------------
Well, I'd like to start DIY on these; but would like to read up on the issues before tackling the problems. for now, getting ready for Halloween with my niece! Trick or Treat ya'll..!!

Google each code, in the case of the evap one this was the first result:

16826/P0442/001090 - Ross-Tech Wiki

I changed my gas cap to Audi OEM gas cap 2 yrs ago. Could it be due again?