So let me start off with what I need your guys help with and why i'm making this thread. My 2005 mk4 jetta tdi has started to shift really funny between 3rd and 4th gear. Now the issue is that it will be in 3rd and as its about to shift to 4th gear, it looses all power to the wheels and the rpm's shoot up and will not resume power until you let go of the gas and let if shift itself back into 3rd (I think). This will happen out of nowhere and it's unpredictable when it will do it. Today it did it five times back to back within the time span of 20 min. It will not do this when you let go of the gas at the peak of 3rd to let it shift to 4th. To give the closest explanation of what it feels like is like the transmission or clutch slips and misses 4th gear and just spins until the car realizes this and put's itself back into 3rd and acts like nothing every happened. I have had a transmission temperature sensor- implausible signal code before, but it's not there now. I drove around with my dad in the passenger seat watching vcds while this happened but he saw nothing that indicated a problem. He watched the solenoid behavior but we think the hex-net is quite delayed as shifts happened a few seconds before vcds showed anything. To be honest, we don't even know what to look for in vcds. Most troubling is that there are no codes whatsoever. I have a new scan of my car today as listed below.
Code:
Tuesday,17,February,2015,18:51:33:31462
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 14.10.1.1 (x64)
Data version: 20150130


VIN: 3VWSR69M25M033882   License Plate: 
Mileage: 246310km-153049mi   Repair Order: autoscan 2/17/15



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Chassis Type: 9M (9M - VW Jetta IV (1998 > 2014))
Scan: 01 02 03 08 09 15 16 17 19 22 29 35 36 37 39 46 47 55 56 57
          75 76
 
VIN: 3VWSR69M25M033882   Mileage: 246310km-153049miles
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Address 01: Engine        Labels: 038-906-016-BEW.lbl
   Part No SW: 038 997 016 R    HW: 028 101 181 2
   Component: R4 1,9L EDC G000AG  0282  
   Revision: 12345678    Serial number: VWZ7Z0D0331077
   Coding: 0150034
   Shop #: WSC 05232 444 85902
   VCID: AD124E4B356B5849756-5184

No fault code found.
Readiness: 0 0 0 0 0 

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Address 02: Auto Trans        Labels: 09A-927-750.lbl
   Part No: 09A 927 750 BL
   Component: AG5 Getriebe 09A   0262   
   VCID: F6A0A127D0BD5B91C4C-5184

No fault code found.

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Address 03: ABS Brakes        Labels: 1C0-907-37x-ESP-F.lbl
   Part No: 1C0 907 379 M
   Component: ESP FRONT MK60      0102  
   Coding: 0019458
   Shop #: WSC 00066 000 00000
   VCID: B4245B2FD64109813A8-5184

1 Fault Found:
01423 - Lateral Acceleration Sensor (G200) 
            008 - Implausible Signal - Intermittent

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Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
   Part No: 1C0 909 605 F
   Component: 04 AIRBAG VW61 0202 0003  
   Coding: 12340
   Shop #: WSC 00066  
   VCID: A71EBC63479772198FA-5160

1 Fault Found:
00532 - Supply Voltage B+ 
            07-10 - Signal too Low - Intermittent

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Address 17: Instruments        Labels: 1J0-920-xx5-17.lbl
   Part No: 1J5 920 906 R
   Component: KOMBI+WEGFAHRSP VDO V57  
   Coding: 04234
   Shop #: WSC 00000  
   VCID: BC34730FAE11C1C1F28-5160
   3VWSR69M25M033882     VWZ7Z0D0331077

1 Fault Found:
01304 - Radio 
            49-00 - No Communications

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Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
   Part No: 6N0 909 901 
   Component: Gateway K<->CAN    0001  
   Coding: 00006
   Shop #: WSC 00066  
   VCID: F0AC973FB2D975A11E0-5160

1 Fault Found:
01304 - Radio 
            49-00 - No Communications

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Address 46: Central Conv.        Labels: 1C0-959-799.lbl
   Part No: 1C0 959 799 C
   Component: 1H Komfortgerát HLO 0004  
   Coding: 00258
   Shop #: WSC 00066  
   VCID: B73E6C239737E2991FA-4B3C

   Subsystem 1 - Part No: 1C1959801A
   Component: 1H Tőrsteuer.FS KLO 0202  

   Subsystem 2 - Part No: 1C1959802A
   Component: 1H Tőrsteuer.BF KLO 0202  

   Subsystem 3 - Part No: 1C0959811A
   Component: 1H Tőrsteuer.HL KLO 0202  

   Subsystem 4 - Part No: 1C0959812A
   Component: 1H Tőrsteuer.HR KLO 0202  

3 Faults Found:
00928 - Locking Module for Central Locking; Front Driver Side (F220) 
            54-00 - Incorrectly Equipped
00930 - Locking Module for Central Locking; Rear Left (F222) 
            27-00 - Implausible Signal
00931 - Locking Module for Central Locking; Rear Right (F223) 
            27-10 - Implausible Signal - Intermittent

End-------------------------(Elapsed Time: 08:55)--------------------------
We also got a recorded log of it when the shift issue happened but to me it doesn't seem very helpful
Code:
Tuesday,17,February,2015,18:39:39:31462
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 14.10.1.1 (x64)
Data version: 20150130





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                Address 02: Auto Trans  (09A 927 750 BL)

18:39:28
  31.4 %   Solenoid Valve 6 (N93)
  72.0*C   ATF Temperature 
  13.37 V   Battery Voltage 
  4.6 %   Solenoid Valve 4 (N91)
  00001100   Condition of Solenoid Valves
  N/A   Multi-Function Switch
  1728 /min   Transmission Speed (G182)
  20.0 %   Accelerator Pedal
I also have a video of my car doing it. (don't listen to me say the gears because I am off so I put a text to help with that


Honestly I hope I explained this all clearly enough because I have searched the web from top to bottom to try and find the cause of this and nobody is giving a definite answer mainly because it could be alot of things. I'm 18 and I bought this car with my own money, I don't have enough money to take it to the shop for the weekend and hope that they find a solution. Any help or advice will be greatly appreciated and I thank you all very much.