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Model specific boards => Golf mk4 => Topic started by: Big Tone on 25 May 2011, 08:32
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I have tried logging both blocks 002 and 003 in order to attain a g/s reading from my MAF.
However, in VAG COM, the parameters/scale ranges from 2.0-4.0 g/s, and all readings recorded fall within this.
What am I doing wrong? Is there another Block?
Engine is AUM
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What gear are you logging in? my AUM logs in block 002 have been okay, 2-4 at idle and then increase accordingly on WOT runs.
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Ah, right, I see.
2-4 g/s at idle, then this will increase to 150+ on a 3rd/4th WOT run. yes?
Assuming everything is ok of course.
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Ah, right, I see.
2-4 g/s at idle, then this will increase to 150+ on a 3rd/4th WOT run. yes?
Assuming everything is ok of course.
Correct :afro: Best hit that private runway of yours :lipsrsealed:
3rd gear from 1200rpm to the redline and repeat 3-4 times to get an average reading :smiley:
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Yep. and as rhys says, best to do on a private run way as WOT in 3rd to at least 6500rpm is not exactly slow...
Can you save logs? If not take some one with you as you do not want to be trying to look at the screen during this session!
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Yep. and as rhys says, best to do on a private run way as WOT in 3rd to at least 6500rpm is not exactly slow...
Can you save logs? If not take some one with you as you do not want to be trying to look at the screen during this session!
Yep you can save them
There is also a little feature called the 'marker' which you click just before starting your run. When you open the logs in excel you can quickly spot your full throttle runs as it puts an extra column and lists them 1,2,3 etc etc :nerd:
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Aye but can you save logs if using just the free VCDS-lite with no support/registration? I forget, thats the only reason I mention it!
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Aye but can you save logs if using just the free VCDS-lite with no support/registration? I forget, thats the only reason I mention it!
That I don't know :undecided:
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Ah, right, I see.
2-4 g/s at idle, then this will increase to 150+ on a 3rd/4th WOT run. yes?
Assuming everything is ok of course.
Correct :afro: Best hit that private runway of yours :lipsrsealed:
3rd gear from 1200rpm to the redline and repeat 3-4 times to get an average reading :smiley:
Going to burn some V-POWER!
Nicely
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Just been out and used the runway :laugh:
I did three logs;
2 in 3rd and 1 in 4th
Please see graphs and associated MAF logs below;
MAX MAF value about 150 g/s!!!! 196Bhp?
I suspect because the boost is not spiking that this is causing my 17705? as the difference between actual and requested is over 250mb, could the MAF be the cause?
First 3rd gear log;
(http://i997.photobucket.com/albums/af99/Big_Tone_2010/3rd1WOT-25511.jpg)
Revs MAF N75 Boost-(Act) Spec
1440 25.58 0 1050 1930
2800 95.25 77.6 1990 1980
3360 101.03 77.6 1920 1920
3840 111.42 77.6 1910 1900
4320 120.58 76.5 1890 1840
4680 127.33 74.9 1820 1790
5040 132.97 74.1 1750 1750
5360 140.39 75.3 1720 1730
5680 147.03 77.3 1720 1710
5480 13.19 0 1410 1000
Second 3rd WOT run
(http://i997.photobucket.com/albums/af99/Big_Tone_2010/3rd2WOT-25511.jpg)
Revs MAF N7 5 Boost-(Act) (Spec)
1760 25.83 0 1170 1870
1960 44.53 95.3 1330 1990
2280 69 95.3 1710 2040
2720 82.31 78.4 2080 2040
3160 98.97 78.4 2000 1930
3680 104.33 77.3 1910 1950
4080 116.75 78 1920 1880
4480 124.5 76.5 1900 1810
4920 128.94 74.1 1780 1770
5280 136.89 74.5 1730 1750
5600 145.33 75.7 1710 1740
5880 150.19 77.3 1750 1730
6200 152.89 78 1730 1710
6400 17.86 77.6 1700 1000
4400 8.72 0 1070 1000
First 4th WOT run
(http://i997.photobucket.com/albums/af99/Big_Tone_2010/4thWOT-25511.jpg)
Revs MAF N75 Boost-(Act) (Spec)
1560 27.69 0 1130 1360
1680 32.53 95.3 1290 1830
1840 39.14 95.3 1410 1970
2040 51.61 95.3 1580 2000
2240 65.03 95.3 1800 2020
2480 74.64 84.3 2050 2040
2760 84.61 79.2 2050 2050
3040 90.67 80 2040 1990
3320 98.92 78.4 1960 1930
3560 103.5 77.3 1940 1920
3840 106.39 77.3 1920 1930
4120 115.47 77.3 1920 1900
4360 120.31 76.5 1890 1870
4560 121.89 75.7 1860 1840
4760 124.69 74.9 1820 1830
4960 130.39 75.3 1800 1820
5120 133.14 76.1 1820 1810
5280 137.31 76.9 1790 1810
5440 143.28 78 1790 1810
5600 147.97 78.8 1810 1000
5560 10.58 0 1150 1000
MAF you think? Or N75? Or something else?
What about tweaking the N75 screw?
Once its boosts it boosts good, it is just sloppy getting there.
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Hmm your MAF figures should be INCREASING towards the redline :shocked:
What BHP are you running approx??
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150g/s would be about 185bhp...
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150g/s would be about 185bhp...
187.5 bhp :nerd: :tongue: :grin: :grin:
Highest figure is 157g/s divide by 0.8 = 196.25bhp
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Stage one, no dyno though.
Is my n75 fooked? As this its what controls the boost spike? Which I don't have!!
Just to top it all! My water pump FAILED DOING THESE LOGS!!
Tw#t mk4!
Now added N75 duty cycle to logs.
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Can anyone help? Feel life burning the bit#h but I have gone too far now! :tongue:
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Well..... I had a new MAF fitted yesterday and took these readings today.
3rd Gear
Group A: '002 Group B: '003
RPM Load Inj. On Time Mass Flow RPM Mass Flow Load Ign. Timing
TIME TIME
STAMP /min % ms g/s STAMP /min g/s % °BTDC
0.4 1320 74.4 9.52 21.11 0 1280 5.56 2 16.5
1.2 1480 87.2 9.18 26.03 0.8 1400 23.61 78.4 6
2 1640 97 10.2 31.11 1.6 1560 28.89 87.8 9.8
2.82 1800 102.3 10.54 36.44 2.42 1720 34.06 97.3 8.3
3.83 2040 115.8 12.24 47.97 3.31 1920 40.81 100 9
4.63 2280 132.3 13.94 61.31 4.23 2160 54.08 100 5.3
5.52 2560 151.1 15.64 77.36 5.12 2440 70.72 100 3
6.34 2880 169.2 18.36 96.33 5.94 2720 86.03 100 7.5
7.14 3200 188 21.76 116.42 6.74 3040 107.11 100 3
7.94 3560 191.7 23.46 131.86 7.54 3400 125.97 100 4.5
8.75 3880 186.5 25.5 138.06 8.33 3720 137.31 100 2.3
9.65 4200 178.2 24.48 139.36 9.25 4040 142.33 100 5.3
10.56 4520 172.2 24.14 146.67 10.16 4360 147.25 100 5.3
11.36 4760 166.9 23.46 150.72 10.96 4640 150.11 99.6 7.5
12.16 5000 163.2 23.46 155.5 11.76 4920 153.81 100 9
12.98 5240 158.6 23.46 157.39 12.58 5160 157.78 100 9
13.78 5440 154.9 22.78 160.19 13.38 5360 160.22 100 9.8
14.59 5640 151.1 22.1 164.11 14.18 5560 162.81 99.6 11.3
15.39 5840 149.6 22.44 164.92 14.97 5720 163.81 99.6 10.5
16.29 6040 144.4 21.42 165.69 15.89 5960 163.08 100 8.3
17.1 6160 141.4 21.42 165.69 16.7 6080 166.25 100 9
18.01 6320 138.3 20.74 166.75 17.5 6240 167.03 100 10.5
18.8 6480 134.6 20.06 165.69 18.42 6400 167.03 100 13.5
19.61 6600 136.1 20.74 167.28 19.22 6520 167.81 99.6 14.3
20.62 6680 129.3 17.68 117.39 20.13 6640 167.22 100 14.3
21.52 5080 12 0 10.03 21.02 5960 13.11 6.7 12.8
4th Gear
Group A: '002 Group B: '003
RPM Load Inj. On Time Mass Flow RPM Mass Flow Load Ign. Timing
TIME TIME
STAMP /min % ms g/s STAMP /min g/s % °BTDC
0.01 1640 97.7 9.86 32.36 0.49 1720 34.69 98 12
0.89 1760 104.5 10.88 36.47 1.29 1840 38.69 100 6.8
1.71 1880 110.5 11.56 41.22 2.2 1960 44.47 100 9
2.61 2040 121.8 12.92 49.86 3.01 2120 53.64 100 6
3.41 2160 133.8 13.94 57.17 3.82 2240 62.86 100 4.5
4.32 2360 150.4 15.64 68.83 4.72 2440 74.39 100 3.8
5.23 2520 161.7 17 80.33 5.73 2640 86.67 100 6
6.12 2760 172.2 19.04 92.81 6.53 2840 99.33 100 3
6.92 2920 184.2 21.76 105.14 7.34 3040 108.92 100 3.8
7.74 3120 191.7 23.12 118.22 8.14 3240 122.64 100 1.5
8.64 3360 191.7 23.8 128.25 9.03 3480 133.19 100 2.3
9.45 3560 191.7 26.52 135.78 9.95 3680 133.61 100 2.3
10.35 3760 189.5 25.84 135.25 10.75 3840 135.92 100 5.3
11.16 3920 185 25.16 140.33 11.56 4000 142.17 100 9
11.96 4120 182.7 23.12 143.53 12.36 4160 141.19 100 7.5
12.76 4280 176.7 24.14 143.67 13.16 4360 145.22 100 5.3
13.56 4400 174.4 24.14 146.92 13.98 4480 148.81 100 8.3
14.38 4560 172.9 24.14 149.47 14.78 4640 150.39 100 10.5
15.18 4720 169.9 23.46 151.97 15.58 4760 152.97 100 7.5
15.98 4840 166.9 23.46 152.97 16.38 4880 154.22 100 7.5
16.79 4960 163.9 23.12 155.89 17.19 5000 156.31 100 9
17.59 5080 161.7 23.12 153.81 18.09 5160 158 99.6 9
18.49 5200 160.2 22.78 158.19 18.91 5280 160.75 100 9.8
19.31 5280 159.4 22.78 162.28 19.71 5360 160.78 100 12
20.11 5400 156.4 22.44 161.5 20.51 5440 164.67 100 14.3
20.91 5520 155.6 22.78 162.56 21.32 5560 164.39 99.6 11.3
21.72 5600 153.4 22.44 164.67 22.22 5640 164.47 100 9
22.63 5680 151.9 22.44 164.64 23.02 5720 166.5 100 12
23.43 5760 150.4 22.1 165.17 23.93 5840 165.17 100 8.3
24.35 5840 148.9 22.1 166.25 24.84 5880 167.33 100 12.8
25.24 5920 148.1 22.1 167.03 25.64 5960 166.75 100 14.3
26.04 6000 145.9 21.42 167.56 26.46 6040 165.17 100 12.8
26.95 6080 144.4 21.42 165.69 27.35 6080 165.94 100 13.5
27.75 6120 143.6 21.42 167.22 28.15 6160 167.03 100 15.8
28.57 6160 140.6 21.08 165.69 29.07 6200 167.56 99.6 15
29.46 6240 135.3 19.72 159.97 29.88 6240 153.39 100 20.3
30.36 6280 127.8 18.7 152.64 30.78 6280 155.67 100 18.8
Hope this can help you make sense of your readings as these should be bang on for the MAF
208ish BHP :cool: . My last reading was 206BHP at R-tech so its about right.
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Cheers pal, wil have a look and compare them.