Vag-Com logs

[jamesroobotom]

Hi i had my mk3 cupra remapped just before christmas and just got round to logging it through vag-com. Something doesnt seem right to me :shrug:

Here's a few logs:

Actual boost doesnt seem to be following requested boost as you would expect. And there seems to be something drastically wrong with engine loads.

Group A: '114 Group B: '115
Load Load Load Load RPM Load Absolute Pres. Absolute Pres.
TIME TIME
STAMP % % % % STAMP /min % mbar mbar
0.39 149.6 320.9 115.8 85.9 0.69 2400 124.8 2210 1710
1.09 148.1 323.9 136.1 83.5 1.39 2600 142.1 2180 1930
1.69 150.4 326.9 148.1 80.8 2.09 2840 159.4 2140 2100
2.49 149.6 329.9 167.7 83.5 2.79 3120 166.9 2110 2230
3.09 148.1 331.3 161.7 79.2 3.39 3360 158.6 2090 2100
3.79 147.4 334.3 156.4 79.6 4.19 3680 153.4 2080 2060
4.49 148.9 331.3 153.4 80.8 4.79 3880 154.9 2080 2080
5.19 150.4 332.8 153.4 81.2 5.59 4120 154.1 2080 2060
5.89 149.6 334.3 154.1 82.4 6.19 4320 153.4 2070 2030
6.49 149.6 337.3 154.1 83.9 6.89 4600 154.1 2060 2020
7.29 149.6 338.8 155.6 85.9 7.59 4760 154.9 2040 1980
7.89 150.4 340.3 152.6 85.9 8.19 4960 151.9 2030 1950
8.59 151.1 338.8 148.9 85.9 8.89 5160 145.1 2060 1890
9.19 151.1 337.3 145.1 85.9 9.5 5400 139.8 2070 1860
9.89 151.1 332.8 136.8 85.9 10.3 5520 134.6 2100 1820
10.59 151.1 326.9 133.1 85.9 10.9 5640 133.1 2120 1810
11.29 151.1 325.4 130.8 85.9 11.7 5800 130.1 2140 1770
12 148.9 322.4 129.3 85.9 12.3 5960 127.1 2170 1750
12.6 147.4 317.9 127.1 85.9 13 6080 125.6 2170 1720
13.39 146.6 319.4 124.1 85.9 13.7 6160 124.8 2180 1710
14 145.1 316.4 123.3 85.9 14.29 6280 122.6 2190 1680
14.69 144.4 314.9 121.8 85.9 15.09 6360 120.3 2200 1680


Also the Maf readings are a fair bit lower than i would expect for a remapped car?

Group A: '002 Group B: '020 Group C:
RPM Load Inj. On Time Mass Flow Idle Stabilization Idle Stabilization Idle Stabilization Idle Stabilization
TIME TIME TIME
STAMP /min % ms g/s STAMP CF CF CF CF STAMP
0.25 2160 102.3 13.94 46.14 0.55 0 0 1.5 0
0.85 2320 119.5 16.81 57.94 1.25 0 0 1.5 0
1.65 2600 140.6 19.68 72.11 1.95 0 0 0 0
2.25 2800 153.4 21.32 83.03 2.55 0 0 0 0
2.95 3080 169.2 23.78 102.69 3.35 0 0 0 0
3.65 3320 160.2 23.37 98.36 3.95 0 0 0 0
4.35 3560 155.6 23.37 105.47 4.75 0 0 0 0
5.05 3760 154.1 23.37 108.83 5.34 0 0 0 0
5.65 4000 154.1 23.78 118.89 6.04 0 0 0 0
6.45 4240 153.4 24.19 123.28 6.75 0 0 0 0
7.04 4400 154.9 24.6 129.14 7.44 0 0 0 0
7.86 4640 154.9 25.01 136.28 8.14 0 0 0 0
8.44 4800 152.6 25.42 139.19 8.74 0 0 0 0
9.15 4960 148.9 25.42 139.22 9.55 0 0 0 0
9.84 5120 145.9 25.01 141.89 10.14 0 0 0 0
10.54 5280 140.6 24.19 140.69 10.94 0 0 0 0
11.24 5400 136.8 23.37 142.78 11.55 0 0 0 0
11.85 5520 133.1 22.96 141.61 12.24 0 0 0 0
12.64 5680 131.6 22.55 142.33 12.95 0 0 0 0
13.24 5800 130.1 22.55 141.36 13.65 0 0 0 0
14.04 5880 128.6 22.55 144.08 14.35 0 0 0 0
14.65 5960 126.3 22.14 144.78 15.05 0 0 0 0
15.35 6040 124.8 22.14 144.36 15.75 0 0 0 0
16.04 6120 123.3 21.73 144.08 16.34 0 0 0 0


Lambda readings seem to match up ok....

Group A: '031
Voltage Voltage
TIME
STAMP V V
0.37 0.765 0.71
0.66 0.665 0.755
0.96 0.785 0.755
1.27 0.8 0.795
1.66 0.85 0.825
1.97 0.86 0.845
2.27 0.855 0.84
2.58 0.86 0.845
2.97 0.86 0.845
3.27 0.86 0.845
3.57 0.87 0.86
3.87 0.16 0.85
4.17 0.83 0.83
4.56 0.83 0.86
4.96 0.85 0.855
5.26 0.855 0.85
5.56 0.865 0.86
5.86 0.87 0.865
6.26 0.865 0.86
6.67 0.865 0.86
6.97 0.86 0.86
7.27 0.86 0.86
7.67 0.86 0.86
8.06 0.86 0.86
8.37 0.86 0.855
8.67 0.71 0.865


Just like to add intake temps were no higher 38 degrees on the standard smic, also i swapped the Maf with known healthy Maf and still got a peak reading of 144g/s.

Would be very greatful if Will or anybody could comment on the logs and suggest any solutions. :headhurt:

[DPJ]

Actual Boost is falling way short of requested. MAF looks to be poorly. Something well skewed with the load figures.......

[jamesroobotom]

And suggests as to why though? Would a boost leak cause this?

[r8byb]

Im sure when i monitored my load i was getting 130% plus on revo stage 2, logged my MAF also and was only getting 146g/s a few days ago, fitted a new MAF yesterday and it seems alot smoother so maybe try a brand new one, how are you sure that the other MAF is healthy ? done logs with that one ?

[DPJ]

No fault codes?

[r8byb]

is load for each cylinder, just seen the 89.% in the 4th column, is that for cylinder 4 then ?

[DPJ]

is load for each cylinder, just seen the 89.% in the 4th column, is that for cylinder 4 then ?

erm no.

114 columns are

Specified Load
Adjusted Specified Load
Actual Load
Duty Cycle.

If the car isn't making the load specified, the ECU applies adjustments to try to achieve specified (hence column 2) Column 4 = N75 duty cycle.

[Myki da Pyki]

Actual Boost is falling way short of requested.

Sounds exactly like mine was. Had to have mine put back to standard as there was/is no cure with this map as of yet

[jamesroobotom]

Has no fault codes coming up, the car still seems ok to drive. Looking at the logs i'm thinking it should hold the boost longer???

[jamesroobotom]

The requested boost level seems a bit high at the top end of the rev range.......... would i be right in thinking the k03 turbo can't produce this boost at that rpm, as a result the car pulls back as a safeguard?? :confused:

[P-torque.co.uk]

The requested boost level seems a bit high at the top end of the rev range.......... would i be right in thinking the k03 turbo can't produce this boost at that rpm, as a result the car pulls back as a safeguard?? :confused:

Alot of things could be causing this.....best to contact me before posting really, difficult to diagnose on here.....

Maf should be reading way above that.

Drop me an e-mail if you like :)