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  1. #1
    Gops's Avatar
    6th gear @7000rpm

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    Odd boost cut on WOT after DV service?!

    Hi guys! So been busy sorting things out but now I have a bigger problem!

    yesterday I changed my MAF for a brand spanker.. Car seemed fine under WOT. Today I pop on an s2000 filter so I can clean my JR one. Fine no problems. Then I service my DV and tried to do logs, it cut when I changed into 4th. Now if I'm in 1st gear it'll cut the power like the ESP has kicked In but it's turned off? 2nd seems ok but has flat spots. 3rd is the most odd. It has a flat spot from 2-4k rpm and then it'll kick in? I'm baffled, I did the DV service correctly, no codes are throwing up.. Anyone have an insight, or know which blocks I should log?

    Many thanks guys.

    Gops
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

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  3. #2
    Paradox1's Avatar
    6th Gear

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    check for leaks

    1st step.
    Word!!!

    My A3/Martys Golf would smash that, and this guys £7000 GT9743 supercharged love machine.

  4. #3
    RIP S3dave

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    blocks 002,020,115 for starters
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  5. #4
    Gops's Avatar
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    Went to log and the flipping lappy died! Charging it and will post results ASAP. Many thanks bill!

    oh and no boost leaks that I can see.. I thought it was over boost first but ill log and post
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  6. #5
    Gops's Avatar
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    heres the logs as requested.. I have no idea whats what.. First log is 3rd gear. Second log is 2nd gear and the third log is 1-4th before I had o step on the anchors! Please let me know an insight to this!

    Wednesday 15 May 2013 19:02:19
    8L0 906 018 N 1.8L R4/5VT G 0002
    Group A: '002 Group B: '020 Group C: '115
    RPM Load Inj. On Time Mass Flow Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization RPM Load Absolute Pres. Absolute Pres.
    TIME TIME TIME
    Marker STAMP /min % ms g/s STAMP CF CF CF CF STAMP /min % mbar mbar
    0.02 1440 11.3 1.64 3.03 0.4 0 0 0 0 0.8 1400 10.5 980 990
    1.2 1480 54.1 7.79 21.08 1.6 0 0 0 0 2 1680 73.7 1720 1050
    2.4 1800 77.4 7.79 28.14 2.8 0 0 0 0 3.2 2080 89.5 1890 1240
    3.6 2240 98.5 9.43 43.08 4.01 0 0 0 0 4.51 2640 110.5 2100 1610
    4.91 2840 118.8 13.12 68.64 5.31 0 0 0 0 5.81 3480 167.7 2140 2100
    6.22 3760 172.9 17.63 126.31 6.61 0 0 0 0 7.01 4360 145.9 2110 2140
    7.41 4480 96.2 10.66 98.19 7.81 0 0 0 0 8.21 5120 133.1 2070 2080
    8.61 5400 155.6 18.04 164.08 9.01 0 3 3 0 9.41 5880 191.7 1990 2020
    9.81 6120 186.5 22.55 217.17 10.21 0 3 3 0 10.61 6520 191.7 1920 1950
    11.01 6720 191.7 27.06 273.86 11.41 0 3 3 0 11.81 6920 60.2 980 1710
    12.21 6480 3.8 1.23 3.22 12.72 0 0 0 0 13.21 5080 6 980 1050
    13.61 5040 6.8 0 6.94 14.01 0 0 0 0 14.51 4640 7.5 980 1030
    Wednesday 15 May 2013 19:04:43
    8L0 906 018 N 1.8L R4/5VT G 0002
    Group A: '002 Group B: '020 Group C: '115
    RPM Load Inj. On Time Mass Flow Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization RPM Load Absolute Pres. Absolute Pres.
    TIME TIME TIME
    Marker STAMP /min % ms g/s STAMP CF CF CF CF STAMP /min % mbar mbar
    0.02 1640 11.3 0 3.97 0.4 0 0 0 0 0.8 1680 64.7 1740 980
    1.2 1840 78.2 7.79 30.03 1.6 0 0 0 0 2.02 2360 100.8 2010 1220
    2.42 2680 111.3 10.66 61.39 2.82 0 0 0 3 3.2 3520 188 2140 1990
    3.62 4080 191.7 17.63 155.5 4.02 0 0 0 3.8 4.51 5360 187.2 2080 2090
    4.91 5840 152.6 17.63 153.56 5.31 0 0 0 2.3 5.71 6680 165.4 1890 1970
    6.11 6880 84.2 5.74 71.58 6.51 0 0 0 0 6.91 5760 6 980 1160
    7.31 4560 5.3 1.23 4.61 7.71 0 0 0 0 8.11 4400 6.8 980 1040
    8.51 4320 6.8 0 6.03 8.91 0 0 0 0 9.31 4160 7.5 980 1030
    Wednesday 15 May 2013 19:05:47
    8L0 906 018 N 1.8L R4/5VT G 0002
    Group A: '002 Group B: '020 Group C: '115
    RPM Load Inj. On Time Mass Flow Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization RPM Load Absolute Pres. Absolute Pres.
    TIME TIME TIME
    Marker STAMP /min % ms g/s STAMP CF CF CF CF STAMP /min % mbar mbar
    0.4 1000 16.5 2.05 3.22 0.9 0 0.8 0 0 0.01 1040 18 980 990
    1.69 1840 68.4 6.97 25.22 2.09 0 0.8 0 0 1.3 1320 63.9 1500 990
    2.89 3600 60.9 6.97 46.08 3.31 0 0 0 0 2.49 3040 84.2 2170 1270
    4.09 6640 185 16.4 234.81 4.49 0 0 0 0 3.71 5600 185 2070 2140
    5.29 4960 191.7 23.78 217.53 5.69 0.8 0.8 0.8 0.8 4.91 4320 136.1 2220 1270
    6.51 6520 139.1 17.63 136.44 6.91 0.8 3 0 0 6.09 6040 185 2000 2040
    7.69 5000 106.8 11.48 109.19 8.09 0 0 0 3 7.29 6080 5.3 980 1390
    8.89 5520 181.2 22.96 235.44 9.29 0 0 0 3 8.49 5280 191.7 2110 2140
    10.09 6240 166.9 19.68 174.72 10.49 0 3 0 2.3 9.69 6000 114.3 1980 2010
    11.29 6400 7.5 1.23 0 11.69 0 0 0 0 10.89 6680 119.5 1650 1960
    12.61 5440 182.7 21.32 188.5 13.01 0 0 0 0 12.21 5320 185.7 2090 2130
    13.81 5800 154.9 18.04 169.64 14.21 0 3 0 3 13.41 5680 175.2 2010 2040
    15.01 5880 27.1 2.87 0 15.41 0 0 0 0 14.61 6000 138.3 1980 2010
    16.28 4720 8.3 0 7.08 16.7 0 0 0 0 15.81 5240 7.5 980 1130
    17.5 4680 9 0 8.31 18 0 0 0 0 17.1 4840 8.3 980 1040
    18.89 4440 10.5 0 8.61 19.29 0 0 0 0 18.49 4920 9 980 1030
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  7. #6
    s3dave's Avatar
    TFSI Hybrid

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    Air flow is all over the place, showing 340ish bhp at one stage.......is that your little summat?....

  8. #7
    Gops's Avatar
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    LOL I knew it was quick but that would bend a rod! What does all ths mean then?
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  9. #8
    Scullies's Avatar
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    is it a genuine bosch MAF ?

  10. #9
    Gops's Avatar
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    Yeah got it from TPS. Could it be the maf..?
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  11. #10
    Gops's Avatar
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    Anyone?
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  12. #11
    Gops's Avatar
    6th gear @7000rpm

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    Well I think I had a dodger maf connector. I binned the s2000 filter as it was way to oily! I'm about to log again as I haven't had that judder since I fixed the connector..

    This is what I got with the s2000 filter:
    Attached Images Attached Images
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  13. #12
    Gops's Avatar
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    Put the JR filter back on and logged this..

    Friday 17 May 2013 15:10:27
    8L0 906 018 N 1.8L R4/5VT G 0002
    Group A: '002 Group B: '032 Group C: '115
    RPM Load Inj. On Time Mass Flow Lambda Lambda Bin. Bits Bin. Bits RPM Load Absolute Pres. Absolute Pres.
    TIME TIME TIME
    Marker STAMP /min % ms g/s STAMP % % STAMP /min % mbar mbar
    0.85 1640 90.2 8.2 29.25 0.01 -0.8 -3.9 0.45 1520 83.5 1650 1050
    2.06 2120 111.3 10.25 47.25 1.25 -0.8 -3.9 1.65 1960 101.5 1860 1210
    3.36 2760 154.1 14.35 85.14 2.56 -0.8 -3.9 2.96 2520 135.3 2090 1560
    4.56 3520 172.2 16.81 116.78 3.76 -0.8 -3.9 4.16 3240 169.9 2140 2070
    5.76 4360 178.9 18.04 148.61 4.96 -0.8 -3.1 5.36 4120 178.2 2120 2150
    6.96 5120 172.2 18.04 167.78 6.16 -0.8 -3.1 6.56 4840 175.2 2080 2110
    8.16 5800 163.9 18.45 181.25 7.36 -0.8 -3.1 7.76 5600 166.9 2010 2040
    9.36 6400 159.4 18.45 183.72 8.56 -0.8 -3.1 8.96 6240 156.4 1960 1980
    10.56 6840 127.1 15.99 154.42 9.76 -0.8 -3.1 10.16 6760 158.6 1910 1960
    11.85 6680 7.5 0 9.92 10.97 -0.8 -3.9 11.45 6760 6.8 990 1200
    13.16 6360 9.8 0 12.28 12.25 -0.8 -3.9 12.76 6440 9 990 1050
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

  14. #13
    Scullies's Avatar
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    Did you sort out the maf plug? How is the car now?

  15. #14
    Gops's Avatar
    6th gear @7000rpm

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    Car doesn't seem to judder anymore.. Feels pretty much the same as before. I can feel the turbo being quite lazy.. Will have to see what happens when it's at bills!
    Quote Originally Posted by <tuffty/> View Post
    its either mapped or broken...

 

 

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