help needed with fault codes

[1981whips]

ive tried vag-com on my car and these are the fault codeds i got has anyone got any ideas on what i should do and how

17705 - pressure drop between turbo and throtte valve (check D.V !)
p1297_35_10__
17072 - ECM power relay load circuit (j271) open
p0688_35_10___internittent
1801 - power supply terminal 30: voltage too low
p1602_35-10 intermittent

readiness: 0000 1000

address 08 says excessive comm errors

address 46
01135 - interior monitoring sensors 36-10_opencircuit intermittent
00943 - heated exterior mirror: driver side (z4) 35-10__intermittent
00912 - windows regulator switch :front left(e40)
27-10___implausible signal - intermittent
00944 - heated exterior mirrior - passenger side (z5) 35-00

i did have the passenger window open a little when i did this so dont know if that was the window fault ive had a new battery fitted before doing this test so could it be the wrong battery and as far as i know it doesnt have heated mirrors my d.v is a forge splitter which i did have set on semi atmospheric but have put it to recurculating know but with my CIA on it doesnt seem any different noise wise do i have the seetings wrong

the car is working ok most of the time doesnt feel as quick but only goes into limp mode somtimes and no ecu lights

 

[Big_daddy]

The dv fault, check the dv it self, do a pen test, then check the pipes for leaks espically the the small vacum line at the top.
The power supply fault means you have disconnected the battery.

Not sure on the rest. search it on ross tech website

 

[1981whips]

thanks for that i have got a boost gauge aswell so i might have a hole in that somwhere as ive connected into the top of the D.V do you know how many turns to do with a splitter as i know its been asked and asked but when i looked into it no one had a set answer

 

[Big_daddy]

On idle the vac should around -8, not sure on the number of turns as i dont have the splitter. Try turnning it on full recirc and see if it makes a different

 

[1981whips]

mines sitting at -25psi and goiing up to 10+ max mine is also only a lc 180 ive got it on full recirc at the minuet but does it not mater about the amount of clicks still

 

[1981whips]

ive cleared all faults and took it for a 10 min spin and then rechecked and no faults apart from those in address 46 which i carnt seem to find to reset.

and call me thick but what do you meen by pen test