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Discussion Starter #1
I have a 2004 passat tdi with a manual trans, egr delete and stage 2 tune that I bought non running. It is now running but loses power above 2000 rpm. The car has no codes, I recorded a log file and one thing I noticed is mass air flow requested is always at 1000, actual will change between 400-900. What factors would effect mass air flow requested?
 

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Discussion Starter #2
Saturday,27,June,2020,20:38:14:22172
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 20.4.1.0 (x64) HEX-V2 CB: 0.4508.4
Data version: 20200331 DS317.0
www.Ross-Tech.com


VIN: WVWVE63BX4E299089 License Plate:


Chassis Type: 3B (3B - VW Passat B5 (1997 > 2005))
Scan: 01 02 03 08 15 16 17 19 35 36 37 46 47 55 56 57 58 75 76 77


VIN: WVWVE63BX4E299089 Mileage: 411140km-255470miles
-------------------------------------------------------------------------------
Address 01: Engine Labels: 038-906-016-BHW.lbl
Part No SW: 038 997 016 N HW: 028 101 143 3
Component: R4 2,0L EDC G000SG 1388
Revision: 12345678 Serial number: VWZ7Z0D9464903
Coding: 0150031
Shop #: WSC 02190 128 00032
VCID: 290FF831F5EC4B83245-5160

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

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Address 03: ABS Brakes Labels: 4B0-614-517.lbl
Part No: 4B0 614 517 G
Component: ABS/ESP front 3428
Coding: 04255
Shop #: WSC 05311
VCID: 2517F4019CF46FE300D-51CE

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 6Q0-909-605-VW5.lbl
Part No: 1C0 909 605 C
Component: 09 AIRBAG VW61 04 0003
Coding: 12345
Shop #: WSC 05311
VCID: 2411E90597CE96EB173-513C

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

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Address 16: Steering wheel Labels: 1J0-907-487-A.lbl
Part No: 1J0 907 487 A
Component: Lenkradelektronik 0005
Coding: 00118
Shop #: WSC 05311
VCID: 2F3B1629CE0825B3FA1-5160

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 3B0-920-xx5-17.lbl
Part No: 3B0 920 929 C
Component: KOMBI+WEGFAHRSP VDO V04
Coding: 13235
Shop #: WSC 00000
VCID: 270BFE09E6F87DF3321-513C
WVWVE63BX4E299089 VWZ7Z0D9464903

1 Fault Found:
01315 - Transmission Control Module
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 05311
VCID: 70B9D55513B67A4BA3B-513C

1 Fault Found:
01315 - Transmission Control Module
49-00 - No Communications

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Address 46: Central Conv. Labels: 1C0-959-799.lbl
Part No: 1C0 959 799 C
Component: 80 Komfortgerát HLO 0003
Coding: 00258
Shop #: WSC 05311
VCID: 372B2E493658ED73A21-4B1E

Subsystem 1 - Part No: 1C1959801
Component: 80 Tõrsteuer.FS KLO 0202

Subsystem 2 - Part No: 1C1959802
Component: 80 Tõrsteuer.BF KLO 0202

Subsystem 3 - Part No: 1C0959811
Component: 80 Tõrsteuer.HL KLO 0202

Subsystem 4 - Part No: 1C0959812
Component: 80 Tõrsteuer.HR KLO 0202

13 Faults Found:
01330 - Central Control Module for Central Convenience (J393)
53-10 - Supply Voltage Too Low - Intermittent
00928 - Locking Module for Central Locking; Front Driver Side (F220)
54-10 - Incorrectly Equipped - Intermittent
00929 - Locking Module for Central Locking; Front Passenger Side (F221)
54-10 - Incorrectly Equipped - Intermittent
00930 - Locking Module for Central Locking; Rear Left (F222)
54-10 - Incorrectly Equipped - Intermittent
00931 - Locking Module for Central Locking; Rear Right (F223)
54-10 - Incorrectly Equipped - Intermittent
01331 - Door Control Module; Driver Side (J386)
53-10 - Supply Voltage Too Low - Intermittent
00928 - Locking Module for Central Locking; Front Driver Side (F220)
27-00 - Implausible Signal
01332 - Door Control Module; Passenger Side (J387)
53-10 - Supply Voltage Too Low - Intermittent
01359 - Internal Central Locking Switch; Passenger Side (E198)
27-10 - Implausible Signal - Intermittent
00929 - Locking Module for Central Locking; Front Passenger Side (F221)
27-10 - Implausible Signal - Intermittent
01333 - Door Control Module; Rear Left (J388)
53-10 - Supply Voltage Too Low - Intermittent
01334 - Door Control Module; Rear Right (J389)
53-10 - Supply Voltage Too Low - Intermittent
00931 - Locking Module for Central Locking; Rear Right (F223)
27-10 - Implausible Signal - Intermittent

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Address 56: Radio Labels: 3B7-035-1xx-56.lbl
Part No: 3B7 035 180 G
Component: Radio NP2 0016
Coding: 00031
Shop #: WSC 00003
VCID: 2411E90597CE96EB173-513C

No fault code found.

End----------(Elapsed Time: 04:32, VBatt start/end: 12.4V/12.4V)-----------
 

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9,466 Posts
I don't see any error codes as there are a lot that will cause the problem.

VAG Error Code: 01315

Fault Location:
Transmission Control Module (TCM) (J217) - No Signal/Communication

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

CAN-Data Bus Wiring/Connector(s) from/to Transmission Control Module (TCM) (J217) faulty.
Fault(s) stored in Transmission Control Module (TCM) (J217).

Possible Solutions:
Check CAN-Data Bus Wiring/Connector(s) from/to Transmission Control Module (TCM) (J217).
Read Measuring Value Blocks (MVB).
Usually Measuring Value Blocks (MVB) 125+ show the current Communication Status.
Check Data Bus Chapter 90-9.
Skoda-Fabia 2000-Electrical.pdf

VAG Error Code: 00532

EOBD II Error Code: P1750

Fault Location:
Supply Voltage B+ - Supply Voltage too Low/Open Circuit/Signal too Low/Signal too High/Lower Limit Exceeded/Upper Limit Exceeded

Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.

Fuse(s).
Wiring/Connectors from/to ABS Control Module (J104)/Brake Electronics Control Module (J104).
This Diagnostic Trouble Code (DTC) is only stored, if it occurs the first time the vehicle exceeds 6 km/h.
As soon as the supply voltage is again within the valid voltage range, the system is switched back on and the warning lights turn off.
Open circuit or resistance too high between voltage supply of terminal 15 and ABS Control Module (J104)/Brake Electronics Control Module (J104) (terminal 1).
Open circuit or resistance too high in earth supply to ABS Control Module (J104)/Brake Electronics Control Module (J104) terminals 28 & 29.
Voltage jumps in vehicle.
Power Supply (Battery/Generator) faulty.

Possible Solutions:
Check/Replace Fuse(s).
Check/Replace all faulty Wiring/Connectors from/to Control Module.
Check Power Supply (Battery/Generator).
Read Measuring Value Blocks (MVB).

Special Notes:
When found in an individual control module, it's most likely a local source (e.g. wiring/connectors).
When found in multiple control modules at the same time, it's most likely a common source (e.g. ground spot, battery, generator).
Intermittent codes are often stored during low outside temperature when the battery capacity goes down and may be ignored.
Common with 16946/P0562/001378 - System Voltage: Too Low stored in other control modules.

As taken from my new Free EOBD II Error Codes software
 

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Discussion Starter #5
The transmission one are due to fact that it had an auto trans and is no a manual transmission
 
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