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Thread: Still the lack of power.

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  1. Still the lack of power. 
    #1
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    Starts to accelerate, sudden loss off power, NO response from pedal (not even limp home mode), check engine warning light on, higher than normal revs when out of gear.

    Had these problems a couple of years now, early on the problem was intermittent, every few days to few months. Tried several solutions, cleaned the ECU box out of damp, replaced the accelerator peddle, and even changed the turbo; after the turbo it was OK for months and it started up again. Found I could set off in higher gears and the fault would rectify, but it's given up the ghost completely now.

    Results of the vagcom below, any suggestions?

    I have not changed the MAF, and I have seen it could be the gear box or a wiring loom; and the ECU is blanked off.

    Thanks.

    Code:
    Chassis Type: 8D - Audi A4 B5 (1995 > 2001)
    Scan: 01 02 03 08 15 16 17 25 35 37 45 55 56 57 67 75 76 77
     
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 038-906-019-AJM.lbl
       Part No: 038 906 019 BR
       Component: 1,9l R4 EDC G000SG  1064  
       Coding: 00002
       Shop #: WSC 06325  
       VCID: 68DF5E2B0886005E3C3-4A9C
    
    5 Faults Found:
    18039 - Accelerator Position Sensor (G79) 
                P1631 - 35-10 - Signal too High - Intermittent
    18040 - Accelerator Position Sensor (G79) 
                P1632 - 35-10 - Power Supply Malfunction - Intermittent
    17554 - Mass Air Flow Sensor (G70) 
                P1146 - 35-10 - Supply Voltage - Intermittent
    17553 - Mass Air Flow Sensor (G70) 
                P1145 - 35-10 - Short to Plus - Intermittent
    17965 - Charge Pressure Control 
                P1557 - 35-10 - Positive Deviation - Intermittent
    Readiness: 0 0 X X X 
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 8E0-614-111-ASR.lbl
       Part No: 8E0 614 111 AH
       Component: ABS/ASR 5.3 FRONT   D10  
       Coding: 00012
       Shop #: WSC 06435  
       VCID: 64C74A1BF4AE643E10B-5072
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 8D0-820-043-1D.lbl
       Part No: 8D0 820 043 Q
       Component: A4     KLIMAAUTOMAT D57  
       Coding: 00044
       Shop #: WSC 06325  
       VCID: 2E53E833EAE29E6E36F-254E
    
    1 Fault Found:
    01274 - Air Flow Flap Positioning Motor (V71) 
                41-00 - Blocked or No Voltage
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8D0-959-655-AI8.lbl
       Part No: 8D0 959 655 J
       Component: Airbag Front+Seite 1001  
       Coding: 01106
       Shop #: WSC 06325  
       VCID: 3D71DF7F378475F6BF5-5072
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8D0-920-xxx-17.lbl
       Part No: 8D0 920 980 
       Component: B5-KOMBIINSTR. VDO D11   
       Coding: 00440
       Shop #: WSC 00000  
       VCID: E8DFDE2B8886805EBC3-5000
    
       Component: AUZ7Z0Y1411444  
            AUZ7Z0Y1411444
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 35: Centr. Locks        Labels: 8D0-862-257.lbl
       Part No: 8D0 862 257 E
       Component: CV-Pump, Alarm, RC  D13  
       Coding: 13130
       Shop #: WSC 06325  
       VCID: 2F6DF537EDE897663D9-4DD6
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 45: Inter. Monitor        Labels: 4B0-951-173.lbl
       Part No: 4B0 951 173 
       Component: Innenraumueberw.    D03  
       Coding: 00102
       Shop #: WSC 06325  
       VCID: E0CFC60B60B6F81E743-4A9C
    
    2 Faults Found:
    01377 - Ultra Sonic Sensor for Alarm System; Left (G170) 
                27-10 - Implausible Signal - Intermittent
    01378 - Ultra Sonic Sensor for Alarm System; Right (G171) 
                27-00 - Implausible Signal
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 8D0-035-1xx-56.lbl
       Part No: 8D0 035 195 
       Component:  Radio              D00  
       Coding: 00205
       Shop #: WSC 06325  
       VCID: E3C5C90771A0E306691-4A3A
    
    No fault code found.
    
    End   ---------------------------------------------------------------------
    Last edited by Crasher; 30-05-2020 at 02:22 PM.
    audi a4 1.9tdi Avant PD engine. 2000
     
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  2. Re: Still the lack of power. 
    #2
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    Clear the codes, take it for a run and do a rescan and post.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (1868-1956)
     
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  3. Re: Still the lack of power. 
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    I'll do that, ordered a used mag from ebay, i'll do it after that has arrived.
    audi a4 1.9tdi Avant PD engine. 2000
     
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  4. Re: Still the lack of power. 
    #4
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    Quote Originally Posted by minny View Post
    I'll do that, ordered a used mag from ebay, i'll do it after that has arrived.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (1868-1956)
     
    0 0 0
     

  5. Re: Still the lack of power. 
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    Quote Originally Posted by Crasher View Post

    Heat getting to you there lad?

    I can run it without putting the maf first, then put it on; it is one of the few things, along with examining all the wiring, that I have not done, so for 20 quid, worth a pop.
    audi a4 1.9tdi Avant PD engine. 2000
     
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  6. Re: Still the lack of power. 
    #6
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    Quote Originally Posted by minny View Post
    Heat getting to you there lad?
    No much! I have more hair than in an 80's German pop video (never wanted a mullet, got one now) and as I have got older, anything over 18 degrees and I start melting...
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (1868-1956)
     
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