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Thread: The underboosting Audi A3 8p

  1. #1
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    The underboosting Audi A3 8p

    Went from apr stage one at 15psi to 3-5 psi max
    Overnight!
    Have replaced dv,n75, and boost leak tested
    And de catted
    Vcds scan revealed
    000665- boost pressure regulation
    P0299-002- control range not reached
    005634-power supply terminal 30
    P1602-002-voltage too low- intermittent
    Have all values please help

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Please post a complete Auto-Scan for context.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  4. #3
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    Code:
    Friday,11,May,2018,13:45:35:24746
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 8.1 x64
    VCDS Version: 18.2.0.3 (x64)
    Data version: 20180212 DS287.0
    www.Ross-Tech.com
    
    
    VIN: WAUHF68PX6A000724   License Plate: 
    Mileage: 89090km-55357mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 8P (1K0)
    Scan: 01 03 08 09 15 16 17 19 25 42 44 46 47 52 56 62 72
    
    VIN: WAUHF68PX6A000724   Mileage: 89090km-55357miles
    
    00-Steering Angle Sensor -- Status: OK 0000
    01-Engine -- Status: Malfunction 0010
    03-ABS Brakes -- Status: Malfunction 0010
    08-Auto HVAC -- Status: Malfunction 0010
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: Malfunction 0010
    25-Immobilizer -- Status: OK 0000
    42-Door Elect, Driver -- Status: Sporadic communication error 1000
    44-Steering Assist -- Status: Malfunction 0010
    46-Central Conv. -- Status: Malfunction 0010
    47-Sound System -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    56-Radio -- Status: Malfunction 0010
    62-Door, Rear Left -- Status: Malfunction 0010
    72-Door, Rear Right -- Status: OK 0000
     
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels:. 06F-907-115-AXX.clb
       Part No SW: 8P0 907 115 B    HW: 8P0 907 115 B
       Component: 2.0l R4/4V TFSI     0080  
       Revision: --H10---    Serial number: AUX7Z0E1FN70NJ
       Coding: 0103010A18070160
       Shop #: WSC 95982 999 84216
       VCID: 316937C4A849F0CCA7-8064
    
    2 Faults Found:
    000665 - Boost Pressure Regulation 
                   P0299 - 002 - Control Range Not Reached - Intermittent
                 Freeze Frame:
                        Fault Status: 00110010
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 89035 km
                        Time Indication: 0
                        Date: 2018.04.24
                        Time: 00:23:27
    
                 Freeze Frame:
                        RPM: 5264 /min
                        Load: 58.0 %
                        Speed: 106.0 km/h
                        Temperature: 77.0°C
                        Temperature: 18.0°C
                        Absolute Pres.: 980.0 mbar
                        Voltage: 14.224 V
    
    005634 - Power Supply Terminal 30 
                   P1602 - 002 - Voltage too Low - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 0
                        Fault Frequency: 1
                        Reset counter: 255
                        Mileage: 0 km
                        Time Indication: 0
    
                 Freeze Frame:
                        RPM: 0 /min
                        Load: 0.0 %
                        Speed: 0.0 km/h
                        Temperature: -40.0°C
                        Temperature: -40.0°C
                        Absolute Pres.: 0.0 mbar
                        Voltage: 0.000 V
    
    Readiness: 0010 0101
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 1K0-907-379-MK60-F.lbl
       Part No: 1K0 907 379 K
       Component: ESP FRONT MK60      0104  
       Coding: 0021126
       Shop #: WSC 95982 999 54568
       VCID: 3A7B10E8753F339416-806E
    
    1 Fault Found:
    00287 - ABS Wheel Speed Sensor; Rear Right (G44) 
                003 - Mechanical Failure - Intermittent
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 8P0-820-043.lbl
       Part No SW: 8P0 820 043 H    HW: 8P0 820 043 H
       Component: KlimavollautomatH14 0180  
       Revision: 153488      Serial number: 8P0820043H    
       Shop #: WSC 06314 000 00000
       VCID: 316937C4A849F0CCA7-8064
    
    2 Faults Found:
    00819 - High Pressure Sensor (G65) 
                009 - Open or Short to Ground
                 Freeze Frame:
                        Fault Status: 01101001
                        Fault Priority: 3
                        Fault Frequency: 35
                        Reset counter: 211
                        Mileage: 88113 km
                        Time Indication: 0
                        Date: 2018.04.02
                        Time: 13:17:35
    
                 Freeze Frame:
                        Temperature: 13.0°C
                        Voltage: 11.90 V
                        RPM: 0 /min
                        Load: 0.0 %
                        Load: 9.0 %
    
    01331 - Door Control Module; Driver Side (J386) 
                004 - No Signal/Communication - Intermittent
                 Freeze Frame:
                        Fault Status: 00100100
                        Fault Priority: 3
                        Fault Frequency: 13
                        Reset counter: 250
                        Mileage: 88142 km
                        Time Indication: 0
                        Date: 2018.04.03
                        Time: 10:46:56
    
                 Freeze Frame:
                            ON
    
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels:. 8P0-907-279-23-H.lbl
       Part No SW: 8P0 907 279 F    HW: 8P0 907 279 F
       Component: Bordnetz-SG     H35 1102  
       Revision: 00H35000    Serial number: 00000001353857
       Coding: 098C4F828014100000181800180000000038FE075C1100
       Shop #: WSC 98765 666 36447
       VCID: 408F620013E3694458-8014
    
       Subsystem 1 - Part No: 8P1 955 119 B  Labels: 1KX-955-119.CLB
       Component: Wischer AU350   H01 0130  
       Coding: 00062736
       Shop #: WSC 98765  
    
    7 Faults Found:
    01501 - Bulb for Blinkers; Rear Left (M6) 
                012 - Electrical Fault in Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101100
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 240
                        Mileage: 88832 km
                        Time Indication: 0
                        Date: 2018.04.19
                        Time: 04:47:00
    
                 Freeze Frame:
                            ON
                        Voltage: 13.50 V
                            ON
                            ON
                            OFF
                            OFF
                            ON
    
    00987 - Lamp for Brake Light; Left (M9) 
                012 - Electrical Fault in Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101100
                        Fault Priority: 1
                        Fault Frequency: 1
                        Reset counter: 240
                        Mileage: 88467 km
                        Time Indication: 0
                        Date: 2018.04.13
                        Time: 17:41:00
    
                 Freeze Frame:
                            ON
                        Voltage: 14.45 V
                            ON
                            ON
                            OFF
                            OFF
                            ON
    
    00984 - Left Tail Light (M4) 
                012 - Electrical Fault in Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101100
                        Fault Priority: 2
                        Fault Frequency: 45
                        Reset counter: 240
                        Mileage: 88144 km
                        Time Indication: 0
                        Date: 2018.04.03
                        Time: 15:51:00
    
                 Freeze Frame:
                            ON
                        Voltage: 13.85 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    00985 - Right Tail Light (M2) 
                012 - Electrical Fault in Circuit - Intermittent
                 Freeze Frame:
                        Fault Status: 00101100
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 240
                        Mileage: 88113 km
                        Time Indication: 0
                        Date: 2018.04.02
                        Time: 13:15:00
    
                 Freeze Frame:
                            ON
                        Voltage: 11.55 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    01331 - Door Control Module; Driver Side (J386) 
                004 - No Signal/Communication - Intermittent
                 Freeze Frame:
                        Fault Status: 00100100
                        Fault Priority: 2
                        Fault Frequency: 121
                        Reset counter: 251
                        Mileage: 88126 km
                        Time Indication: 0
                        Date: 2018.04.02
                        Time: 17:05:00
    
                 Freeze Frame:
                            OFF
                        Voltage: 12.30 V
                            OFF
                            ON
                            OFF
                            OFF
                            ON
    
    00987 - Lamp for Brake Light; Left (M9) 
                012 - Electrical Fault in Circuit
                 Freeze Frame:
                        Fault Status: 01101100
                        Fault Priority: 1
                        Fault Frequency: 1
                        Reset counter: 211
                        Mileage: 88113 km
                        Time Indication: 0
                        Date: 2018.04.02
                        Time: 13:15:00
    
                 Freeze Frame:
                            ON
                        Voltage: 11.55 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    00988 - Lamp for Brake Light; Right (M10) 
                012 - Electrical Fault in Circuit
                 Freeze Frame:
                        Fault Status: 01101100
                        Fault Priority: 1
                        Fault Frequency: 1
                        Reset counter: 211
                        Mileage: 88113 km
                        Time Indication: 0
                        Date: 2018.04.02
                        Time: 13:15:00
    
                 Freeze Frame:
                            ON
                        Voltage: 11.55 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 8P0-959-655-94.lbl
       Part No SW: 8P0 959 655 A    HW: 8P0 959 655 A
       Component:    Airbag 9.41  H10 3250  
       Revision: 91H10325    Serial number: 0035W0000MYA  
       Coding: 0030605
       Shop #: WSC 06314 000 00000
       VCID: 408F620013E3694458-8014
    
       Subsystem 1 - Serial number: 6332DRB40169CE90Y
    
       Subsystem 2 - Serial number: 6342DRB4016B4F24R
    
       Subsystem 3 - Serial number: 63528RB4003E3D84P
    
       Subsystem 4 - Serial number: 63628RB4003E1EA2P
    
       Subsystem 5 - Serial number: 63729RB4004C6D2BV
    
       Subsystem 6 - Serial number: 63829RB4044D29B7Y
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel        Labels: 8P0-953-549.lbl
       Part No SW: 8P0 953 549 C    HW: 8P0 953 549 C
       Component: Lenksäulenmodul H21 0050  
       Coding: 0000022
       Shop #: WSC 06314 000 00000
       VCID: 3E731CF869171FB42A-806A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 8P0-920-xxx-17-MY7.lbl
       Part No SW: 8P0 920 900 J    HW: 8P0 920 900 J
       Component: KOMBIINSTR. VDO H73 0300  
       Revision: D04         Serial number: 1241ED04007798
       Coding: 0004333
       Shop #: WSC 95982 999 54568
       VCID: 366304D84127D7F4F2-8062
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels:. 1K0-907-530-V1.clb
       Part No SW: 1K0 907 530 D    HW: 1K0 907 951 
       Component: Gateway         H08 0100  
       Revision: 08          Serial number: 25001051290652
       Coding: 3D3F0342072102
       Shop #: WSC 06314 000 00000
       VCID: 285FDAA09B93B10470-807C
    
    1 Fault Found:
    01331 - Door Control Module; Driver Side (J386) 
                004 - No Signal/Communication - Intermittent
                 Freeze Frame:
                        Fault Status: 00100100
                        Fault Priority: 2
                        Fault Frequency: 230
                        Reset counter: 251
                        Mileage: 88126 km
                        Time Indication: 0
                        Date: 2018.04.02
                        Time: 17:05:23
    
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
       Part No SW: 8P0 920 900 J    HW: 8P0 920 900 J
       Component: KOMBIINSTR. VDO H73 0300  
       Revision: D04         Serial number: AUX7Z0E1FN70NJ
       Shop #: WSC 65157 001 1048576
       VCID: 366304D84127D7F4F2-8062
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels: 8P0-959-801-MIN1.lbl
       Part No: 8P0 959 801 E
       Component: Tuersteuerger.  H10 0030  
       Coding: 0000017
       Shop #: WSC 06314 000 00000
       VCID: 3D711BF4641104AC33-8068
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1Kx-909-144-G2V2.clb
       Part No: 1K1 909 144 H
       Component: EPS_ZFLS Kl.7       1502  
       Shop #: WSC 00000 000 00000
       VCID: 306F32C0A343F9C4A8-8064
    
    1 Fault Found:
    00778 - Steering Angle Sensor (G85) 
                000 -  - 
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 8P0-959-433.lbl
       Part No: 8P0 959 433 D
       Component: 02 KSG          H04 0050  
       Coding: 9AC003382D08850FC88F447300
       Shop #: WSC 65157 001 1048576
       VCID: 3D711BF4641104AC33-8068
    
       Subsystem 1 - Part No: 1K0 951 605 C
       Component: LIN BACKUP HORN H02 1301
    
       Subsystem 2 - Part No: 1K0 907 719 B
       Component: Neigungssensor  004 0003
    
       Subsystem 3 - Component:      IRUE n.mounted     
    
    2 Faults Found:
    01331 - Door Control Module; Driver Side (J386) 
                004 - No Signal/Communication
    01134 - Alarm Horn (H12) 
                004 - No Signal/Communication - Intermittent
    
    -------------------------------------------------------------------------------
    Address 47: Sound System        Labels: 8Px-035-382.lbl
       Part No SW: 8P4 035 382     HW: 8P4 035 382 
       Component: AB2 SUBWOOFERBOXH03 0180  
       Revision: 00002       Serial number: 10000001218640
       Shop #: WSC 00000 000 00000
       VCID: 71E9F7C468C9B0CCE7-8024
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels: 8P0-959-802-MIN1.lbl
       Part No: 8P0 959 802 E
       Component: Tuersteuerger.  H10 0030  
       Coding: 0000017
       Shop #: WSC 06314 000 00000
       VCID: 3E731CF869171FB42A-806A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 8P0-035-1xx-56.lbl
       Part No SW: 8P0 035 186 A    HW: 8P0 035 186 A
       Component: concert II US   H56 0410  
       Revision:      09S    Serial number: AUZ5Z6E6012087
       Coding: 0001001
       Shop #: WSC 06435 000 00000
       VCID: 306F32C0A343F9C4A8-8064
    
    1 Fault Found:
    00858 - Connection; Radio Intermediate Frequency (IF) Output to Antenna Amplifier 
                011 - Open Circuit
                 Freeze Frame:
                        Fault Status: 01101011
                        Fault Priority: 5
                        Fault Frequency: 1
                        Reset counter: 152
                        Mileage: 88113 km
                        Time Indication: 0
                        Date: 2018.04.02
                        Time: 13:16:11
    
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left        Labels: 8P4-959-801.lbl
       Part No: 8P4 959 801 B
       Component: Tuer-SG         H10 0020  
       Coding: 0001168
       Shop #: WSC 06314 000 00000
       VCID: 3E731CF869171FB42A-806A
    
    1 Fault Found:
    00934 - Electric Window Motor; Rear Left (V26) 
                005 - No or Incorrect Basic Setting / Adaptation - Intermittent
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right        Labels: 8P4-959-802.lbl
       Part No: 8P4 959 802 B
       Component: Tuer-SG         H10 0020  
       Coding: 0001168
       Shop #: WSC 06314 000 00000
       VCID: 3F8D61FC6E1D16BC21-806A
    
    No fault code found.
    
    End-------------------------(Elapsed Time: 01:45)--------------------------
    Last edited by Uwe; 05-12-2018 at 09:40 AM. Reason: CODE tags

  5. #4
    Benevolent Dictator Uwe's Avatar
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    Hmm, the boost code shows good voltage in the freeze-frame, so I'm going to speculate that it's not related to the "voltage too low" code.

    How exactly was it tested for boost leaks?

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  6. #5
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    3 inch rubber end cap with a tire valve over the maf

  7. #6
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    Have you double checked the hose that runs from the N75 to the wastegate? Check that it's fully seated and tight at both ends.
    Have you double & triple checked that the wastegate was put back in correctly...they're harder to get wrong on your car but I've seen it.

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  9. #7
    Verified VCDS User iichel's Avatar
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    Intermittent mistakes are always the most annoying. By the looks of it, didn't occur simultaneously either.

    Have a look at the vacuum lines, like suggested by dafrazi. Maybe you'll need to do a basic setting/calibration of the new N75?
    Is the actuator arm of the turbo moving? In some engines there is an output test for this.

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