Glowplug light blinking/emissions workshop light on - many fault codes

VAG-COM Version: Release 311.2-N

Chassis Type: 1J - VW G/J/B Mk4
Scan: 01,02,03,08,15,17,19,22,35,46,56

Address 01 -------------------------------------------------------
Controller: 038 906 019 KJ
Component: 1,9l R4 EDC G000SG 5256
Coding: 00002
Shop #: WSC 01266
WVWZZZ1JZ5W063625 VWZ7Z0D1150530
2 Faults Found:
19463 - Camshaft Position Sensor (G40): No Signal
P3007 - 35-10 - - - Intermittent
16706 - Engine Speed Sensor (G28): No Signal
P0322 - 35-00 - -
Readiness: N/A

Address 03 -------------------------------------------------------
Controller: 1C0 907 379 M
Component: ESP FRONT MK60 0102
Coding: 0019970
Shop #: WSC 01266
1 Fault Found:
01314 - Engine Control Module
013 - Check DTC Memory - Intermittent

Skipping Address 15-Airbags

Address 17 -------------------------------------------------------
Controller: 1J5 920 946 C
Component: KOMBI+WEGFAHRSP VDO V23
Coding: 17414
Shop #: WSC 00000
WVWZZZ1JZ5W063625 VWZ7Z0D1150530
1 Fault Found:
01336 - Data Bus for Comfort System
80-10 - Single-Wire Operation - Intermittent

Address 19 -------------------------------------------------------
Controller: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 01266
1 Fault Found:
01336 - Data Bus for Comfort System
80-10 - Single-Wire Operation - Intermittent

Address 46 -------------------------------------------------------
Controller: 1C0 959 799 B
Component: 6G Komfortgerát HLO 0004
Coding: 00259
Shop #: WSC 01266
No fault code found.

End -------------------------------------------------------

Thats a very interesting read, thanks - i do understand it doesn't nessercily mean the sensor is dodgy though, im just looking for ideas of what to check for in order to resolve it (talking about the cam position/engine speed sensor, which i believe are the same thing on this engine?)

I was working on the car with my dad today to fix something else and we noticed a notch missing out of the pancake pipe where the clip is suposed to hold it in, air was leaking out of it - we have temporarily repaired the issue, but i am wondering if any of these codes (especially cam/speed sensor) can be triggered by too little air/too much diesel due to an air leak and thus timing advancing/retarding....

im probably on the totally wrong track but it seems very odd, because after doing a temp repair to that pipe for the leak the emissions workshop/glowplug light disapeared and the only other thing i did was refix the plastic engine bay guard to the bottom of the car lol