Chip Tuning Error: What to Do?

Hello,
My car has been chipped for over 100,000 kilometers, but I've only just gotten around to using VAG-COM to read the error codes.

There's an issue related to G71, but it only occurs when I fully depress the pedal (high boost pressure).

Is that normal?
I lowered the highest values in the boost pressure map from FF to FE, but I'm still getting the error.

My theoretical explanation is that the increased values in the boost pressure map are too high for the pressure sensor, and therefore, a short circuit is detected, leading to a connection with the Ub (likely referring to a ground or reference voltage).

Here is the error code:

1 DTCs Found:
00519 - Intake Manifold Pressure Sensor (G71)
28-10 - Short to B+ - Intermittent

Here's a log file with everything running at full speed.

Group A: '010 _________________ Group B: '011
______ MasAF Baro Mani Pos ______ Eng Spec Act_ Duty cycle
TIME -945 Pres Pres Thr TIME Sped MAP MAP Boost Valve
STAMP_ mg/R_ mbar mbar %__ STAMP_ /min mbar mbar %
152.19 847.9 1016 1840 100 151.58 2604 1663 1705 66
153.34 847.9 1016 2083 100 152.78 2394 1873 2075 45.7
154.54 847.9 1016 2083 100 153.95 2730 1991 2083 48.8
155.71 847.9 1016 2083 100 155.09 3066 2016 2083 52.7
156.98 847.9 1016 2083 100 156.36 3381 2024 2083 56.6
158.13 721.5 1016 1966 0__ 157.56 3675 2024 2083 60.9
159.32 847.9 1016 2083 100 158.73 2604 1697 1739 55.5
160.49 847.9 1016 2083 100 159.88 2751 1932 2083 65.6
161.74 847.9 1016 2075 100 161.15 2898 2024 2083 68
163.01 847.9 1016 2075 100 162.35 3045 2041 2083 70.3
164.23 847.9 1016 2075 100 163.62 3192 2041 2075 72.7
165.43 847.9 1016 2066 100 164.84 3318 2050 2075 74.2
166.6 555.3 1016 1470 0 165.99 3402 2050 2050 87.5
167.75 542 1016 1369 0 167.18 3297 1487 1378 94.1
169.02 545.3 1016 1336 0__ 168.35 3108 1302 1344 94.1
170.21 552 1016 1302 0 169.62 2877 1252 1327 94.1
171.38 555.3 1016 1268 0__ 170.77 2583 1218 1294 94.1
172.53 542__ 1016 1210 0__ 171.97 2226 1184 1243 93.4
173.73 532__ 1016 1151 0__ 173.14 1911 1159 1184 92.2
174.9 419 1016 1084 0 174.29 1134 1126 1126 92.6
176.09 372.4 1016 1042 0__ 175.51 882_ 1084 1058 91.4
177.27 345.8 1016 1033 0__ 176.65 903_ 1067 1033 89.1
178.41 438.9 1016 1033 0__ 177.85 1260 1067 1033 86.7

Can someone explain the differences between MAP, specified MAP, and actual MAP in this context?

What changes are made with the well-known boost pressure map?
http://www.********.com/img/html/kennfeld4.jpg

The explanation here http://www.********.com/content/htmlpage.php?name=kennfelder is not particularly informative .

Hello,

Are you sure you changed the boost pressure map and not something else? The maximum target value of ~1.05 bar seems a bit low to me.
Your recorded target boost pressure values should have decreased after your map modification.

You logged two measurement blocks with VAGCom.

In block 10, the 'MAP' parameter represents the 'actual value' of 'boost pressure'.
In Block 11, "specified MAP" refers to "target manifold absolute pressure," while "actual MAP" refers to "actual manifold absolute pressure."

If in doubt, this will help you:http://dict.leo.org/?lang=de

I suspect the problem is less likely to be in the original version of your chip and more likely to be in the wiring of the boost pressure sensor or in the boost pressure sensor itself.

Best regards, Rainer.

Are you sure that you changed the boost pressure map and not something else?
Yes, of course. There's only one field that looks like that.

I find the maximum target value of ~1.05 bar a little low.
The aforementioned field may not directly affect the target values, but rather some feedback values from the sensor. Unfortunately, I'm getting very little information about it. I have read out 3 different chip variants, and this field was always modified. ******** does this too, after all .

You have logged measurement blocks with VAGCom 2,
That's correct, and that's why I thought the current boost pressure in the two measurement blocks should be the same. But the timestamps of the two blocks are also different. That explains a lot .

Wiring of the boost pressure sensor
It's unlikely; it's located directly within the control unit.