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  1. #1
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    Question Fault code 17748

    Ok where do I start? A4 2.0lt SE 2001 B6

    My o2 sensor has been faulty for a while now to which I replaced the other day. Only thing is and i'm not sure if it matters, I replaced it with a second hand one from a car that had been in a rear end smash however the sensor was working fine prior to removal.

    So now I have idle/running issues.
    Hot or cold car runs very nicely when MAF is unplugged and very very roughly when plugged in (barely wants to start when cold).
    Would suggest that the MAF is faulty Yes?

    However the fault code coming up is 17748 - Camshaft Position Sensor (G40) / Engine Speed Sensor (G28): Incor. Correlation
    P1340 - 001 - Upper Limit Exceeded

    Timing marks are spot on Checked double checked and checked again!

    So I run the car plugged in the VCDs run the measuring blocks but not sure what I'm looking at, perhaps someone can help explain

    Friday 11 January 2013 11:04:39
    8E0 909 557 2.0L R4/5VS 0001
    Group A: '001 Group B: '002 Group C: '003
    Engine Speed Coolant Lambda Control Basic Setting Engine Speed Engine Load Injection Timing Mass Air Flow Engine Speed Mass Air Flow Throttle Valve Angle Ignition
    TIME (G28) Temperature (G62) Bank 1 Requirements TIME (G28) Sensor (G70) TIME (G28) Sensor (G70) Timing Angle
    Marker STAMP /min °C % STAMP /min % ms g/s STAMP /min g/s % °BTDC
    0.22 1760 91 22.7 1011 0.46 1720 12.8 3.06 5.06 0 1800 5.08 6.7 21.8
    0.93 1720 91 22.7 1011 1.17 1720 15.8 4.08 6.19 0.69 1720 5.08 6.7 21.8
    1.63 1960 92 26.6 1011 1.87 2040 15 3.74 6.5 1.39 1840 6.31 7.8 24.8
    2.32 2160 92 22.7 1001 2.56 2160 12 3.06 5.19 2.09 2120 6.44 8.2 26.3
    3.02 2040 92 26.6 1001 3.24 1960 11.3 3.06 5.22 2.78 2120 5.06 6.7 24.8
    3.72 1880 92 26.6 1011 3.94 1920 14.3 3.74 6.25 3.48 1920 5.75 7.5 22.5
    4.42 2040 92 22.7 1001 4.65 2080 14.3 3.74 6.22 4.18 1960 6.19 7.8 24.8
    5.11 2160 92 26.6 1001 5.33 2200 13.5 3.4 6.36 4.89 2120 6.25 8.2 25.5
    5.8 2240 92 22.7 1001 6.04 2200 11.3 3.06 5.14 5.57 2200 6.33 7.8 26.3
    6.5 2040 92 26.6 1001 6.74 2040 12 3.06 5.25 6.28 2160 5.53 7.5 24
    7.2 1920 92 26.6 1011 7.46 1880 12 3.06 5.42 6.96 1960 5.28 7.1 23.3
    7.94 1840 92 22.7 1011 8.19 1880 13.5 3.74 5.72 7.7 1880 5.92 7.5 23.3
    8.67 1960 92 26.6 1011 8.89 2040 14.3 3.74 6.17 8.43 1880 6.78 8.2 24
    9.37 2120 92 22.7 1001 9.63 2160 12.8 3.4 5.92 9.13 2080 6.25 7.8 25.5
    10.11 2200 92 26.6 1001 10.36 2200 12.8 3.4 6.19 9.87 2160 6.33 7.8 26.3
    10.84 2200 93 22.7 1001 11.1 2200 12.8 3.4 6.06 10.6 2200 6.22 7.8 26.3
    11.58 2160 93 26.6 1001 11.83 2040 10.5 2.72 5.08 11.34 2200 5.42 7.1 25.5
    12.31 1880 93 22.7 1011 12.57 1840 12.8 3.4 6.28 12.07 1960 5.14 6.7 22.5
    13.05 1840 93 26.6 1011 13.3 1880 13.5 3.4 5.53 12.81 1840 5.64 7.1 22.5
    13.78 1880 93 26.6 1011 14.02 1880 13.5 3.4 5.83 13.54 1880 5.58 7.1 23.3
    14.48 1960 93 22.7 1011 14.74 2000 13.5 3.4 5.75 14.24 1920 5.78 7.5 24
    15.22 2000 93 26.6 1001 15.47 2040 12 3.06 4.94 14.98 2000 5.81 7.5 24
    15.95 1920 93 22.7 1011 16.21 1840 12 3.06 5.17 15.71 1960 5.19 6.7 23.3
    16.69 1760 93 26.6 1011 16.94 1760 12.8 3.06 5.08 16.45 1800 4.97 6.7 21.8
    17.42 1720 93 22.7 1011 17.68 1720 12.8 3.4 5.08 17.18 1720 5.08 6.7 21.8
    18.15 1720 93 26.6 1011 18.41 1720 13.5 3.4 5.31 17.92 1720 5.08 6.7 21.8
    18.89 1800 93 22.7 1011 19.13 1840 14.3 3.74 5.72 18.65 1760 5.47 7.1 22.5
    19.59 1920 93 26.6 1011 19.82 1960 13.5 3.4 5.83 19.35 1880 5.75 7.5 24
    20.28 2040 93 26.6 1001 20.52 2040 13.5 3.4 5.81 20.05 2000 5.81 7.5 24.8
    20.98 2040 93 22.7 1001 21.22 2040 12.8 3.4 5.75 20.76 2080 5.81 7.5 24.8
    21.68 2040 93 26.6 1001 21.91 2040 12.8 3.4 5.75 21.44 2080 5.75 7.5 24.8
    22.37 2040 93 22.7 1001 22.61 2040 12.8 3.4 5.86 22.15 2040 5.72 7.5 24
    23.07 2040 93 22.7 1001 23.31 2040 12.8 3.4 5.78 22.83 2040 5.75 7.5 24
    23.77 2040 93 26.6 1001 24 2040 12.8 3.4 5.75 23.54 2000 5.83 7.5 24
    24.46 2080 93 22.7 1001 24.7 2120 14.3 3.74 7.06 24.24 2040 6.39 8.2 24.8
    25.16 2320 93 26.6 1001 25.39 2440 14.3 3.74 7.69 24.92 2240 7.53 8.6 27.8
    25.85 2640 93 22.7 1001 26.09 2720 13.5 3.4 7.81 25.63 2520 7.83 9 27
    26.55 2800 93 22.7 1001 26.79 2840 12.8 3.4 8.03 26.33 2760 7.97 9.4 26.3
    27.26 2920 94 26.6 1001 27.5 2920 12 3.06 7.86 27.03 2880 8.25 9.4 26.3
    27.94 2920 93 22.7 1001 28.18 2880 12 3.06 7.83 27.72 2920 8.06 9.4 24.8
    28.64 2880 94 26.6 1001 28.88 2880 12 3.06 7.72 28.41 2880 8 9.4 24.8
    29.35 2880 94 26.6 1001 29.59 2840 12 3.06 7.67 29.11 2880 7.69 9 25.5
    30.05 2840 94 22.7 1001 30.27 2840 12 3.06 7.81 29.81 2840 7.75 9 24.8
    30.74 2840 94 26.6 1001 30.98 2840 12 3.06 7.69 30.5 2840 7.83 9 25.5
    Friday 11 January 2013 11:05:26
    8E0 909 557 2.0L R4/5VS 0001
    Group A: '001 Group B: '002 Group C: '003
    Engine Speed Coolant Lambda Control Basic Setting Engine Speed Engine Load Injection Timing Mass Air Flow Engine Speed Mass Air Flow Throttle Valve Angle Ignition
    TIME (G28) Temperature (G62) Bank 1 Requirements TIME (G28) Sensor (G70) TIME (G28) Sensor (G70) Timing Angle
    Marker STAMP /min °C % STAMP /min % ms g/s STAMP /min g/s % °BTDC
    0.26 760 96 25 11111 0.5 760 13.5 3.74 2.75 0 760 2.28 2.7 8.3
    0.99 760 96 25 11111 1.23 760 13.5 3.4 2.22 0.73 760 2.39 2.7 6.8
    1.72 760 96 25 11111 1.96 760 12.8 3.4 2.28 1.47 760 2.22 2.7 6.8
    2.46 760 96 25 11111 2.7 760 13.5 3.4 2.28 2.2 760 2.17 2.7 12
    3.19 760 96 25 11111 3.43 760 13.5 3.4 2.22 2.94 760 2.33 2.7 6.8
    3.91 760 96 25 11111 4.14 760 12.8 3.4 2.22 3.67 760 2.22 2.7 7.5
    4.63 760 96 25 11111 4.87 760 12.8 3.4 2.25 4.38 760 2.31 2.7 7.5
    5.37 760 96 25 11111 5.61 760 12.8 3.4 2.08 5.11 760 2.22 2.7 8.3
    6.1 760 96 25 11111 6.34 760 12.8 3.4 2.17 5.84 760 2.14 2.7 13.5
    6.83 760 96 25 11111 7.07 760 12.8 3.4 2.17 6.58 760 2.17 2.7 10.5
    7.57 760 96 25 11111 7.81 760 13.5 3.74 2.25 7.31 760 2.39 2.7 14.3
    8.29 760 96 25 11111 8.51 760 12.8 3.4 2.14 8.05 760 2.22 2.7 6.8
    9.01 760 96 25 11111 9.25 760 12.8 3.4 2.19 8.75 760 2.19 2.7 8.3
    9.74 760 96 25 11111 9.98 760 12.8 3.4 2.28 9.48 760 2.33 2.7 9.8
    10.47 760 96 25 11111 10.71 760 13.5 3.4 2.22 10.22 760 2.22 2.7 8.3
    11.21 760 96 25 11111 11.45 760 12.8 3.4 2.17 10.95 760 2.19 2.7 8.3
    11.94 760 96 25 11111 12.18 760 12.8 3.4 2.14 11.69 760 2.19 2.7 8.3
    12.68 760 96 25 11111 12.92 760 12.8 3.4 2.31 12.42 760 2.08 2.4 10.5
    13.4 760 96 25 11111 13.62 760 13.5 3.4 2.28 13.16 760 2.28 2.7 11.3
    14.08 760 96 25 11111 14.32 760 12.8 3.4 2.25 13.86 760 2.22 2.7 8.3
    14.79 760 96 25 11111 15.03 760 12.8 3.4 2.25 14.55 760 2.28 2.7 8.3
    15.49 760 96 25 11111 15.71 760 12.8 3.4 2.25 15.25 760 2.28 2.7 7.5
    16.18 760 96 25 11111 16.41 760 12.8 3.4 2.19 15.95 760 2.17 2.7 8.3
    16.88 760 96 25 11111 17.1 760 12.8 3.4 2.19 16.64 760 2.25 2.7 9
    17.58 760 96 25 11111 17.8 760 12.8 3.4 2.25 17.34 760 2.25 2.7 12.8
    18.28 760 96 25 11111 18.51 760 12.8 3.4 2.28 18.04 760 2.19 2.7 11.3
    1 18.97 760 96 25 11111 19.22 760 12.8 3.4 2.17 18.73 760 2.19 2.7 9.8
    19.7 760 96 25 11111 19.94 760 13.5 3.74 2.44 19.46 760 2.31 2.7 12
    20.41 760 96 25 11111 20.63 760 13.5 3.4 2.28 20.17 760 2.25 2.7 8.3
    21.09 760 96 25 11111 21.33 760 12.8 3.4 2.22 20.87 760 2.33 2.7 8.3
    21.8 760 95 25 11111 22.04 760 12.8 3.4 2.19 21.56 760 2.19 2.7 8.3
    22.5 760 95 25 11111 22.72 760 12.8 3.4 2.17 22.26 760 2.22 2.7 8.3
    23.18 760 96 25 1111 23.42 800 17.3 5.1 5.64 22.96 760 2.25 2.7 9
    23.89 1200 95 25 1011 24.11 1200 18 4.76 3.92 23.65 1000 4 5.5 20.3
    24.59 1240 96 25 1011 24.81 1320 15.8 4.08 5.31 24.35 1240 3.78 5.1 0.8
    25.28 1680 95 25 1001011 25.52 1880 16.5 4.42 5.83 25.05 1480 5.78 7.5 26.3
    25.98 2120 96 25 1001001 26.2 2120 10.5 3.06 4.5 25.74 2040 5.42 7.1 30
    26.67 1920 95 25 1001011 26.9 1800 9.8 2.72 4.28 26.44 2040 4.33 5.9 24
    27.37 1680 95 25 1001011 27.61 1640 11.3 3.06 4.31 27.13 1720 4.33 5.9 21.8
    28.07 1600 95 25 1001011 28.29 1640 12 3.4 4.78 27.83 1640 4.25 5.5 21.8
    28.76 1680 95 25 1001011 29 1720 12.8 3.4 4.58 28.53 1640 4.78 6.3 23.3
    29.46 1760 95 25 1001011 29.68 1760 12 3.4 4.5 29.22 1720 4.83 6.3 22.5
    30.16 1760 95 25 1001011 30.39 1720 12 3.4 4.72 29.92 1760 4.75 6.3 22.5
    30.86 1760 95 25 1001011 31.09 1800 12.8 3.4 5.25 30.63 1720 5.17 6.7 22.5
    31.55 1880 95 25 1001011 31.77 1920 12.8 3.4 5.33 31.31 1840 5.53 7.1 24
    32.24 2000 95 25 1001001 32.48 2000 12 3.4 5.47 32.01 1960 5.22 7.1 24.8
    2 32.94 2040 95 25 1001001 33.18 2040 12 3.4 5.64 32.72 2040 5.72 7.5 26.3
    33.64 2080 95 25 1001001 33.88 2080 12 3.4 5.67 33.42 2080 5.5 7.1 25.5
    34.33 2120 95 25 1001001 34.57 2120 12 3.4 5.72 34.11 2080 5.72 7.5 25.5
    35.03 2160 95 25 1001001 35.27 2160 12 3.4 5.75 34.79 2120 5.69 7.5 26.3
    35.73 2160 95 25 1001001 35.96 2200 14.3 4.08 7.72 35.5 2160 5.75 7.5 26.3
    36.44 2440 95 25 1001001 36.66 2560 13.5 3.74 6.86 36.2 2320 7.53 9 29.3
    37.12 2640 95 25 1001001 37.36 2680 12 3.4 6.94 36.9 2600 6.5 8.2 27
    37.83 2720 95 25 1001001 38.05 2720 11.3 3.06 7.08 37.59 2680 6.92 8.6 26.3
    38.51 2720 95 25 1001001 38.75 2760 12 3.06 7.31 38.29 2720 7.17 8.6 26.3
    39.25 2800 95 25 1001001 39.49 2800 11.3 3.06 7 39.01 2760 7.42 9 26.3
    39.98 2800 95 25 1001001 40.22 2800 11.3 3.06 7.28 39.74 2800 7.22 8.6 25.5
    3 40.72 2800 95 25 1001001 40.96 2800 11.3 3.06 7.19 40.48 2800 7.28 8.6 26.3
    41.42 2840 95 25 1001001 41.66 2800 11.3 3.06 7.44 41.2 2800 7.14 8.6 26.3
    42.15 2840 95 25 1001001 42.39 2840 11.3 3.06 7.11 41.91 2800 7.33 8.6 26.3
    42.89 2800 95 25 1001001 43.13 2800 11.3 3.06 6.97 42.65 2800 7.22 8.6 25.5
    43.62 2760 95 25 1001001 43.86 2720 10.5 3.06 6.64 43.38 2800 6.72 8.2 25.5


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    Broken Byzan's Avatar
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    Hi, did you ever come to the cause of this? I have the same issue with a 2.0 ALT engined Passat of my dads. Spent hours re adjusting timing because I was sure I had messed it up. The original belt/tensioner was hanging off so i assumed changing the cam kit would fix it, but no

  4. #3
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    Quote Originally Posted by Byzan Pics View Post
    Hi, did you ever come to the cause of this? I have the same issue with a 2.0 ALT engined Passat of my dads. Spent hours re adjusting timing because I was sure I had messed it up. The original belt/tensioner was hanging off so i assumed changing the cam kit would fix it, but no
    no never got to the bottom of it! In fact the car, although runs fine when the MAF is unplugged, is now off the road and will be sold for spares. Sad as I really liked this car but haven't got the funds or the patience to fix it
    <img src=http://www.pbase.com/image/120812615.jpg border=0 alt= />

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    Broken Byzan's Avatar
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    Thanks for the answer, shame you have to break her.

    I'm trying a crank sensor to see if that fixes it, a long winded google suggests, a few have had resuls in changing the cranks(G28) sensor

 

 

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