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  1. #1
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    Can anyone read these logs ? LOSS OF POWER 1.9 tdi no error codes??? HELP :(

    any help much appreciated.
    many thanks to Sailo (Jakob) from the forum for doing a diagnostics log for me.


    i've noticed a major power loss low down especially torque from take off.
    since the power loss i've cleaned the vanes in the turbo, removed the egr (egr delete), de cat and a front mountintercooler.
    none of the mods made any difference to the power.
    there was two vaccum pipes which were going to the egr valve which i have now blanked off.
    The car does seem to react better when cold but still not 100% of what it used to be.
    there must be some explanation to why i have lost so much power.
    I have installed a boost gauge to check what boost im running at, the maximum boost is above 20psi around 25-30 i would say, its hard to say as it go's off the scale.
    i have a data log from the MAF and Boost sensor. 2 logs of each i believe.
    the logs were done on flat ground motorway from 3k to redline.

    Friday 1 June 2012 15:04:00:44690 VCDS Version: Release 11.11.3 (x64) Data version: 20120401
    038 906 019 FT 1.9l R4 EDC 0000SG 1527
    Group A: '010 Group B: Not Running
    MAF Atmos. pressure Intake air press. Throttle
    TIME 900-1250 sensor -f96- 2100-2600 100% TIME
    Marker STAMP mg/str mbar % STAMP
    0.3 725.2 1009.8 1509.3 54.1
    0.65 1053.5 1009.8 1860.3 72.2
    0.97 1078 1009.8 2234.7 79.6
    1.3 1004.5 1009.8 2199.6 92.9
    1.63 1019.2 1009.8 2176.2 100
    1.97 1033.9 1009.8 2211.3 100
    2.29 1029 1009.8 2234.7 100
    2.63 1009.4 1009.8 2246.4 100
    2.97 994.7 1009.8 2246.4 100
    3.3 980 1009.8 2258.1 100
    3.63 960.4 1009.8 2246.4 100
    3.99 950.6 1009.8 2223 100
    4.31 916.3 1009.8 2199.6 100
    4.65 906.5 1009.8 2176.2 100
    4.98 882 1009.8 2141.1 100
    5.33 877.1 1009.8 2129.4 100
    1 5.68 578.2 1009.8 1907.1 0
    6.01 504.7 1009.8 1462.5 0
    6.37 485.1 1009.8 1275.3 0
    6.7 460.6 1009.8 1181.7 0
    7.04 465.5 1009.8 1146.6 0
    7.36 465.5 1009.8 1123.2 0
    7.71 465.5 1009.8 1123.2 0
    8.04 450.8 1009.8 1111.5 0
    8.38 460.6 1009.8 1111.5 0
    8.74 465.5 1009.8 1111.5 0
    22.12 465.5 1009.8 1088.1 0
    22.46 460.6 1009.8 1088.1 0
    22.79 470.4 1009.8 1088.1 0
    23.14 465.5 1009.8 1088.1 0
    23.45 465.5 1009.8 1088.1 0
    23.8 465.5 1009.8 1088.1 12.2
    24.14 480.2 1009.8 1088.1 11.4
    24.46 480.2 1009.8 1088.1 15.3
    24.81 490 1009.8 1088.1 36.5
    25.14 666.4 1009.8 1263.6 42
    25.48 656.6 1009.8 1415.7 41.2
    25.83 637 1009.8 1450.8 40
    26.14 627.2 1009.8 1427.4 39.2
    26.48 622.3 1009.8 1404 37.6
    26.83 583.1 1009.8 1333.8 38
    27.13 627.2 1009.8 1333.8 44.7
    27.48 715.4 1009.8 1439.1 46.7
    27.82 720.3 1009.8 1556.1 40.4
    28.14 641.9 1009.8 1497.6 42
    28.5 646.8 1009.8 1462.5 42.4
    28.84 641.9 1009.8 1450.8 41.6
    29.16 627.2 1009.8 1450.8 32.2
    29.51 558.6 1009.8 1322.1 34.5
    29.83 568.4 1009.8 1298.7 29.8
    30.17 558.6 1009.8 1287 27.8
    30.52 524.3 1009.8 1240.2 21.2
    30.85 524.3 1009.8 1193.4 20.8
    31.19 519.4 1009.8 1181.7 23.1
    31.53 509.6 1009.8 1170 24.7
    31.84 504.7 1009.8 1158.3 23.1
    32.19 509.6 1009.8 1158.3 22.4
    32.53 509.6 1009.8 1146.6 17.6
    32.85 509.6 1009.8 1146.6 0
    33.2 499.8 1009.8 1134.9 0
    33.53 460.6 1009.8 1111.5 15.7
    33.85 485.1 1009.8 1088.1 18
    34.2 485.1 1009.8 1088.1 22.4
    34.52 485.1 1009.8 1099.8 22.4
    34.86 509.6 1009.8 1111.5 23.5
    35.21 509.6 1009.8 1123.2 23.5
    35.52 509.6 1009.8 1123.2 23.5
    35.86 494.9 1009.8 1123.2 23.5
    36.17 509.6 1009.8 1123.2 23.5
    Friday 1 June 2012 15:05:48:44690 VCDS Version: Release 11.11.3 (x64) Data version: 20120401
    038 906 019 FT 1.9l R4 EDC 0000SG 1527
    Group A: '010 Group B: Not Running
    MAF Atmos. pressure Intake air press. Throttle
    TIME 900-1250 sensor -f96- 2100-2600 100% TIME
    Marker STAMP mg/str mbar % STAMP
    0.03 627.2 1009.8 1427.4 40
    0.35 622.3 1009.8 1404 40
    0.67 617.4 1009.8 1380.6 41.2
    1.02 774.2 1009.8 1462.5 56.9
    1.35 1058.4 1009.8 1883.7 76.9
    1.71 1087.8 1009.8 2234.7 99.2
    2.05 1009.4 1009.8 2234.7 100
    2.39 1038.8 1009.8 2199.6 100
    2.72 1063.3 1009.8 2223 100
    3.06 1048.6 1009.8 2234.7 100
    3.39 1033.9 1009.8 2258.1 100
    3.72 1024.1 1009.8 2269.8 100
    4.05 1014.3 1009.8 2281.5 100
    4.4 989.8 1009.8 2269.8 100
    4.72 975.1 1009.8 2269.8 100
    5.07 955.5 1009.8 2246.4 100
    5.4 935.9 1009.8 2223 100
    5.71 921.2 1009.8 2187.9 100
    6.06 916.3 1009.8 2164.5 100
    6.38 891.8 1009.8 2141.1 100
    6.73 754.6 1009.8 2094.3 0
    1 7.07 514.5 1009.8 1626.3 0
    7.4 499.8 1009.8 1345.5 33.3
    7.75 661.5 1009.8 1322.1 52.5
    8.09 597.8 1009.8 1509.3 26.7



    Anyone know how to read data logs and know what the data means?
    Any help is much appreciated.

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  3. #2
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    Friday 1 June 2012 15:08:39:44690 VCDS Version: Release 11.11.3 (x64) Data version: 20120401
    038 906 019 FT 1.9l R4 EDC 0000SG 1527
    Group A: '011 Group B: Not Running
    Engine speed Spec. intake press. Actual intake press. D.cycle MAP
    TIME 2850-3150 2200-2400 2100-2600 35-80% TIME
    Marker STAMP /min mbar % STAMP
    0.03 2982 1550.4 1544.4 58.6
    0.37 3045 2060.4 1591.2 28.7
    0.69 3129 2346 2070.9 72.9
    1.04 3234 2346 2211.3 62.6
    1.38 3360 2346 2176.2 61.8
    1.69 3465 2346 2199.6 61.4
    2.05 3570 2346 2223 62.6
    2.38 3675 2346 2234.7 62.6
    2.7 3780 2346 2258.1 62.6
    3.05 3864 2335.8 2269.8 62.6
    3.38 3969 2315.4 2269.8 62.6
    3.7 4053 2305.2 2269.8 63
    4.06 4158 2284.8 2269.8 63.8
    4.39 4242 2264.4 2246.4 63
    4.7 4326 2233.8 2223 64.5
    5.04 4389 2193 2187.9 62.2
    5.38 4452 2162.4 2164.5 62.2
    5.7 4536 2121.6 2141.1 65.3
    6.05 4410 1132.2 2129.4 56.2
    1 6.4 3717 1071 1638 52.2
    6.72 3129 1040.4 1345.5 50.6
    7.08 3150 1040.4 1216.8 50.2
    7.42 3129 1040.4 1158.3 50.2
    7.76 3108 1040.4 1134.9 49.8
    8.1 3066 1040.4 1123.2 49.8
    8.43 3024 1030.2 1123.2 49.4
    8.76 2961 1030.2 1123.2 49.4
    9.1 2919 1030.2 1111.5 49.4
    9.44 2877 1030.2 1111.5 49.4
    9.76 2814 1030.2 1111.5 49.4
    10.11 2772 1030.2 1111.5 49
    10.47 2709 1020 1099.8 49
    17.95 2898 1336.2 1322.1 51.8
    18.27 2919 1489.2 1333.8 45.4
    18.61 3003 2264.4 1485.9 43.8
    18.94 3066 2346 2012.4 70.1
    19.31 3171 2346 2211.3 62.6
    19.64 3297 2346 2211.3 61.8
    19.99 3402 2346 2223 62.2
    20.31 3507 2346 2234.7 61.8
    20.65 3612 2346 2246.4 61.8
    20.97 3717 2346 2258.1 61.4
    21.31 3801 2335.8 2281.5 61.4
    21.64 3927 2325.6 2293.2 63
    21.99 4011 2315.4 2293.2 63
    22.3 4116 2295 2293.2 63.8
    22.64 4179 2274.6 2269.8 63.8
    22.98 4284 2254.2 2246.4 63.4
    23.31 4368 2213.4 2223 63
    23.65 4410 2182.8 2187.9 62.6
    24 4515 2152.2 2164.5 64.9
    24.33 4557 1754.4 2141.1 86.9
    2 24.69 4032 1091.4 1696.5 53.4
    25.03 3381 1050.6 1368.9 51.4
    25.34 2835 1030.2 1263.6 49.4
    25.69 2709 1020 1193.4 49
    26.03 2793 1030.2 1146.6 49
    26.35 2667 1020 1134.9 49
    26.71 2520 1020 1123.2 48.6
    27.03 2394 1009.8 1111.5 47.4
    27.37 2289 1009.8 1099.8 46.2
    27.72 2058 999.6 1099.8 44.6
    28.05 1680 999.6 1111.5 38.3
    28.39 1344 999.6 1099.8 30.3
    28.73 1596 999.6 1099.8 33.1

  4. #3
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    Hate to say it but those logs are all over the place!

    In VCDS load measuring blocks 003, 010 & 011 & log them at the same time. Drive the car at approx 1800 rpm in 4th gear & start the logging. Floor the accelerator & hold it in gear till it red-lines (or you cack yourself) & stop the logging. Post up the results and they'll hopefully make more sense when they're plotted.
    TDI PD170 S-Line Sportback... 191.2bhp & 290lb/ft torque @ standard with an iffy turbo! No idea with the new one or Shark Stage 1 remap installed, DPF off Stage 1 ready to go, Suspension & wheels to be fitted!
    Bits for sale...
    Genuine S-line 18" alloys, A3 Sportback rear lights. A3 5dr window switches & mirror switch. , Brand new PD170 engine cover. PM for details.

  5. #4
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    problem is i got assistance from a forum member who doesn't live too close to me.
    He done the logs in 3rd gear from 3000rpm to redline on the motorway on flat ground.

    why are they all over the place?
    how can you tell?

  6. #5
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    anyone???

  7. #6
    max69vk's Avatar
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    Quote Originally Posted by tamtom View Post
    prwhy are they all over the place?
    how can you tell?
    I've tried dropping them into a graph & they're all over the place. lol
    TDI PD170 S-Line Sportback... 191.2bhp & 290lb/ft torque @ standard with an iffy turbo! No idea with the new one or Shark Stage 1 remap installed, DPF off Stage 1 ready to go, Suspension & wheels to be fitted!
    Bits for sale...
    Genuine S-line 18" alloys, A3 Sportback rear lights. A3 5dr window switches & mirror switch. , Brand new PD170 engine cover. PM for details.

 

 

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