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Loss of boost spike?

Chumeta

Passed Driver's Ed
Location
Vitoria-España
What do you have K03 o' K04 ?
Before you start buying anything, it´s very easy to check the wastegate opening pressure as I told you, unplugging N75 and logging turbo pressure on channel 115(in third gear it works) You have to have the values that I told you, depending on the turbo you have, and adjust the rod until you get those values. If that leaves it continues to fail, think about changing N75. Have you checked all the turbo pressure regulation parameters with vagcom?
 

Whitedemon

Passed Driver's Ed
Location
Miami, FL
What do you have K03 o' K04 ?
Before you start buying anything, it´s very easy to check the wastegate opening pressure as I told you, unplugging N75 and logging turbo pressure on channel 115(in third gear it works) You have to have the values that I told you, depending on the turbo you have, and adjust the rod until you get those values. If that leaves it continues to fail, think about changing N75. Have you checked all the turbo pressure regulation parameters with vagcom?

i have a k04. Is it safe to run logs with the n75 unplugged? Wouldn’t that cause overboost or make the ecu go into limp mode?
ive logged actual vs requested with vagcom, not sure what the pressure regulation parameters are? Can you point me in the right direction?
 
Last edited:

Chumeta

Passed Driver's Ed
Location
Vitoria-España
It.s measured in limp mode situation. Without working N75(unplugged), only the spring tension works physically without any electronic action.In its channel 115 when making a log it should read a maximun of 0,34-0,35 (1340-1350) boost pressure (k04)
After adjusting the rod, erase mechanical faults (N75)
 

Whitedemon

Passed Driver's Ed
Location
Miami, FL
It.s measured in limp mode situation. Without working N75(unplugged), only the spring tension works physically without any electronic action.In its channel 115 when making a log it should read a maximun of 0,34-0,35 (1340-1350) boost pressure (k04)
After adjusting the rod, erase mechanical faults (N75)

ok thanks, so I’m guessing 1340-1350 that’s in mbar, correct? And the value I’ll be looking at is actual boost? Also you mentioned to do it in 3rd gear, is that a WOT pull (all the way to redline) ?
 

Chumeta

Passed Driver's Ed
Location
Vitoria-España
Exact mbar. and if its the real impulse in that situation. Better in 3rd gear from 2000 to red line (wot) Chanel 115 should mark you several measurements, the max. should be 1340-1350 mbar . You must regulate the rod (shortening it) until you get that max value. Then with n75 plugged into the same channel 115 the current pressure should reach the specified one. If you see that you still do not arrive , look at values of n75 when it does not reach specified it should be closed at 98% or 100% if not its closed it fails , change it. Inform me
 

Whitedemon

Passed Driver's Ed
Location
Miami, FL
Exact mbar. and if its the real impulse in that situation. Better in 3rd gear from 2000 to red line (wot) Chanel 115 should mark you several measurements, the max. should be 1340-1350 mbar . You must regulate the rod (shortening it) until you get that max value. Then with n75 plugged into the same channel 115 the current pressure should reach the specified one. If you see that you still do not arrive , look at values of n75 when it does not reach specified it should be closed at 98% or 100% if not its closed it fails , change it. Inform me

thanks, I'll be trying this over the weekend and let you know how it went.

I'll post the logs..(y)
 

Whitedemon

Passed Driver's Ed
Location
Miami, FL
ok so here's my first run with the n75 unplugged (haven't done any adjusting yet)

Column1Column2Column3Column4Column5Column6
Group A:'115
Engine SpeedEngine LoadBoost PressureBoost Pressure
TIME(G28)(specified)(actual)
MarkerSTAMP/min%mbarmbar
0.01​
2080​
63.2​
980​
1110​
0.06​
2080​
64.7​
980​
1120​
0.1​
2120​
64.7​
980​
1120​
0.15​
2160​
64.7​
970​
1120​
0.2​
2120​
65.4​
970​
1130​
0.25​
2120​
66.2​
970​
1130​
0.29​
2160​
66.2​
970​
1140​
0.34​
2160​
66.2​
970​
1150​
0.39​
2160​
66.2​
980​
1150​
0.43​
2200​
66.2​
970​
1150​
0.48​
2200​
66.2​
980​
1160​
0.53​
2200​
66.9​
980​
1170​
0.57​
2200​
66.9​
970​
1170​
0.62​
2240​
66.9​
980​
1170​
0.66​
2240​
66.9​
980​
1180​
0.71​
2240​
66.9​
980​
1180​
0.76​
2280​
66.9​
980​
1190​
0.81​
2280​
66.9​
980​
1190​
0.86​
2280​
66.9​
980​
1200​
0.9​
2280​
67.7​
980​
1200​
0.95​
2320​
66.9​
980​
1200​
0.99​
2320​
66.9​
980​
1210​
1.06​
2320​
66.9​
980​
1210​
1.13​
2360​
66.9​
980​
1210​
1.19​
2360​
66.9​
980​
1220​
1.26​
2400​
66.9​
980​
1220​
1.32​
2400​
66.9​
980​
1230​
1.38​
2400​
66.9​
980​
1230​
1.45​
2440​
66.9​
980​
1230​
1.49​
2440​
66.9​
980​
1240​
1.54​
2480​
66.9​
980​
1240​
1.59​
2480​
66.9​
980​
1240​
1.63​
2480​
66.9​
980​
1240​
1.68​
2480​
66.9​
980​
1240​
1.73​
2480​
66.9​
980​
1250​
1.78​
2520​
66.9​
980​
1250​
1.83​
2520​
66.9​
980​
1250​
1.87​
2520​
66.9​
980​
1250​
1.92​
2560​
66.9​
980​
1260​
1.97​
2560​
66.9​
980​
1260​
2.01​
2560​
66.9​
980​
1260​
2.06​
2600​
66.2​
980​
1260​
2.11​
2600​
66.9​
980​
1260​
2.15​
2600​
66.9​
980​
1270​
2.2​
2600​
66.9​
980​
1270​
2.25​
2640​
66.9​
980​
1270​
2.29​
2640​
66.9​
980​
1270​
2.35​
2640​
66.9​
980​
1280​
2.39​
2640​
66.9​
980​
1280​
2.44​
2680​
66.9​
980​
1280​
2.48​
2680​
66.9​
980​
1280​
2.53​
2680​
66.9​
980​
1280​
2.58​
2720​
66.9​
990​
1290​
2.63​
2720​
66.9​
990​
1290​
2.68​
2720​
67.7​
990​
1290​
2.73​
2720​
68.4​
990​
1290​
2.78​
2720​
68.4​
990​
1300​
2.83​
2760​
68.4​
990​
1300​
2.87​
2760​
67.7​
990​
1300​
2.92​
2760​
67.7​
990​
1310​
2.97​
2800​
68.4​
990​
1310​
3.02​
2800​
68.4​
990​
1310​
3.06​
2800​
68.4​
990​
1310​
3.11​
2840​
68.4​
990​
1310​
3.16​
2840​
68.4​
990​
1310​
3.2​
2840​
68.4​
990​
1320​
3.25​
2840​
68.4​
990​
1320​
3.31​
2880​
68.4​
990​
1320​
3.35​
2880​
68.4​
990​
1320​
3.4​
2880​
68.4​
990​
1320​
3.45​
2920​
68.4​
990​
1330​
3.5​
2920​
68.4​
990​
1330​
3.55​
2920​
68.4​
990​
1330​
3.59​
2920​
68.4​
990​
1330​
3.64​
2920​
68.4​
990​
1340​
3.68​
2960​
68.4​
990​
1340​
3.73​
2960​
68.4​
990​
1340​
3.78​
2960​
68.4​
990​
1340​
3.83​
3000​
69.2​
990​
1350​
3.87​
3000​
69.2​
990​
1350​
3.92​
3000​
68.4​
990​
1350​
3.97​
3000​
69.2​
990​
1350​
4.01​
3040​
69.2​
990​
1360​
4.06​
3040​
69.2​
990​
1360​
4.11​
3040​
69.2​
990​
1360​
4.15​
3040​
69.2​
990​
1360​
4.19​
3080​
69.2​
990​
1360​
4.25​
3080​
69.2​
990​
1370​
4.31​
3080​
69.9​
990​
1370​
4.36​
3120​
69.9​
990​
1370​
4.4​
3120​
70.7​
990​
1380​
4.45​
3120​
69.9​
990​
1380​
4.5​
3120​
69.9​
990​
1380​
4.54​
3120​
70.7​
990​
1380​
4.59​
3160​
70.7​
990​
1380​
4.64​
3160​
70.7​
990​
1390​
4.68​
3160​
70.7​
990​
1390​
4.72​
3200​
69.9​
990​
1390​
4.78​
3200​
70.7​
990​
1390​
4.82​
3200​
70.7​
990​
1390​
4.87​
3200​
70.7​
990​
1390​
4.91​
3240​
70.7​
990​
1400​
4.96​
3240​
70.7​
990​
1400​
5.01​
3240​
70.7​
990​
1400​
5.06​
3280​
70.7​
990​
1400​
5.11​
3280​
70.7​
990​
1400​
5.15​
3280​
70.7​
990​
1400​
5.2​
3280​
70.7​
1000​
1400​
5.25​
3320​
70.7​
1000​
1400​
5.29​
3320​
70.7​
1000​
1400​
5.34​
3320​
70.7​
990​
1400​
5.38​
3320​
70.7​
990​
1400​
5.43​
3360​
70.7​
990​
1410​
5.48​
3360​
70.7​
1000​
1410​
5.52​
3360​
70.7​
1000​
1410​
5.57​
3360​
69.9​
1000​
1410​
5.62​
3400​
70.7​
1000​
1410​
5.67​
3400​
69.9​
1000​
1410​
5.72​
3400​
69.9​
1000​
1410​
5.76​
3400​
70.7​
990​
1410​
5.81​
3440​
70.7​
990​
1410​
5.85​
3440​
70.7​
990​
1410​
5.9​
3440​
69.9​
1000​
1420​
5.95​
3480​
69.9​
1000​
1410​
6​
3480​
69.9​
1000​
1410​
6.05​
3480​
69.9​
990​
1420​
6.09​
3480​
69.9​
990​
1420​
6.14​
3480​
69.9​
990​
1410​
6.18​
3520​
69.2​
990​
1420​
6.23​
3520​
69.9​
990​
1420​
6.28​
3520​
69.2​
990​
1420​
6.32​
3560​
69.2​
990​
1420​
6.37​
3560​
69.2​
1000​
1420​
6.42​
3560​
69.2​
990​
1410​
6.47​
3560​
69.2​
990​
1420​
6.51​
3560​
69.2​
990​
1420​
6.55​
3600​
69.2​
990​
1420​
6.61​
3600​
69.2​
990​
1420​
6.66​
3600​
69.2​
1000​
1420​
6.7​
3640​
69.2​
1000​
1420​
6.75​
3640​
69.2​
990​
1420​
6.79​
3640​
69.2​
990​
1420​
6.84​
3680​
69.2​
990​
1420​
6.89​
3680​
69.2​
1000​
1420​
6.93​
3680​
69.2​
990​
1420​
6.98​
3680​
69.2​
990​
1420​
7.03​
3720​
69.2​
990​
1420​
7.08​
3720​
69.2​
990​
1420​
7.12​
3720​
69.2​
990​
1420​
7.17​
3720​
69.2​
1000​
1420​
7.22​
3760​
69.2​
990​
1420​
7.26​
3760​
69.2​
1000​
1420​
7.32​
3760​
68.4​
1000​
1420​
7.37​
3760​
68.4​
1000​
1420​
7.42​
3800​
68.4​
1000​
1430​
7.46​
3800​
69.2​
1000​
1420​
7.51​
3800​
69.2​
1000​
1430​
7.56​
3800​
68.4​
990​
1420​
7.61​
3840​
68.4​
990​
1430​
7.65​
3840​
68.4​
1000​
1430​
7.7​
3840​
68.4​
1000​
1420​
7.75​
3840​
68.4​
1000​
1430​
7.79​
3880​
68.4​
1000​
1430​
7.84​
3880​
68.4​
1000​
1430​
7.89​
3880​
68.4​
1000​
1420​
7.93​
3880​
68.4​
1000​
1430​
7.98​
3880​
68.4​
1000​
1430​
8.03​
3920​
68.4​
1000​
1420​
8.07​
3920​
68.4​
1000​
1430​
8.12​
3920​
68.4​
1000​
1430​
8.16​
3920​
68.4​
1000​
1430​
8.22​
3960​
68.4​
1000​
1430​
8.27​
3960​
68.4​
1000​
1430​
8.33​
3960​
68.4​
1000​
1430​
8.37​
4000​
68.4​
1000​
1430​
8.42​
4000​
68.4​
1000​
1430​
8.47​
4000​
68.4​
1000​
1430​
8.51​
4000​
68.4​
1000​
1430​
8.56​
4040​
68.4​
1000​
1430​
8.61​
4040​
69.2​
1000​
1430​
8.65​
4040​
69.2​
1000​
1430​
8.7​
4040​
69.2​
1000​
1430​
8.74​
4040​
69.2​
1000​
1430​
8.79​
4080​
68.4​
1000​
1430​
8.84​
4080​
68.4​
1000​
1430​
8.89​
4080​
68.4​
1000​
1430​
8.93​
4080​
68.4​
1000​
1430​
8.98​
4120​
68.4​
1000​
1430​
9.02​
4120​
68.4​
1000​
1430​
9.07​
4120​
68.4​
1000​
1430​
9.12​
4120​
68.4​
1000​
1430​
9.17​
4160​
68.4​
1000​
1430​
9.21​
4160​
68.4​
1000​
1430​
9.27​
4160​
68.4​
1000​
1430​
9.32​
4160​
68.4​
1000​
1430​
9.36​
4160​
68.4​
1000​
1430​
9.4​
4200​
68.4​
1000​
1430​
9.45​
4200​
68.4​
1000​
1430​
9.49​
4200​
68.4​
1000​
1430​
9.54​
4200​
68.4​
1000​
1440​
9.59​
4240​
68.4​
1000​
1430​
9.64​
4240​
68.4​
1000​
1430​
9.68​
4240​
68.4​
1000​
1430​
9.73​
4240​
68.4​
1000​
1430​
9.78​
4280​
68.4​
1000​
1430​
9.83​
4280​
68.4​
1000​
1430​
9.87​
4280​
68.4​
1000​
1430​
9.92​
4280​
68.4​
1000​
1430​
9.97​
4320​
68.4​
1000​
1440​
10.01​
4320​
68.4​
1000​
1430​
10.06​
4320​
68.4​
1000​
1440​
10.11​
4320​
68.4​
1000​
1430​
10.16​
4320​
68.4​
1000​
1440​
10.2​
4360​
68.4​
1000​
1440​
10.25​
4360​
68.4​
1000​
1440​
10.31​
4360​
68.4​
1000​
1440​
10.36​
4360​
68.4​
1000​
1440​
10.41​
4400​
68.4​
1000​
1440​
10.46​
4400​
68.4​
1000​
1440​
10.51​
4400​
68.4​
1000​
1440​
10.56​
4400​
68.4​
1000​
1440​
10.6​
4400​
68.4​
1000​
1440​
10.65​
4440​
68.4​
1000​
1440​
10.71​
4440​
68.4​
1000​
1440​
10.76​
4440​
68.4​
1000​
1440​
10.81​
4440​
67.7​
1000​
1440​
10.86​
4440​
68.4​
1000​
1440​
10.92​
4480​
68.4​
1000​
1440​
10.97​
4480​
68.4​
1000​
1440​
11.01​
4480​
68.4​
1000​
1440​
11.06​
4520​
68.4​
1000​
1440​
11.11​
4520​
67.7​
1000​
1440​
11.15​
4520​
67.7​
1000​
1440​
11.2​
4520​
68.4​
1000​
1440​
11.25​
4520​
68.4​
1000​
1440​
11.29​
4560​
68.4​
1000​
1440​
11.35​
4560​
68.4​
1000​
1440​
11.39​
4560​
68.4​
1000​
1440​
11.44​
4560​
68.4​
1000​
1440​
11.49​
4560​
68.4​
1000​
1440​
11.55​
4600​
68.4​
1000​
1450​
11.59​
4600​
68.4​
1000​
1450​
11.64​
4600​
68.4​
1000​
1450​
11.68​
4600​
68.4​
1000​
1450​
11.73​
4640​
68.4​
1000​
1450​
11.77​
4640​
68.4​
990​
1450​
11.83​
4640​
68.4​
990​
1450​
11.88​
4640​
68.4​
1000​
1450​
11.92​
4640​
68.4​
990​
1450​
11.97​
4680​
68.4​
1000​
1450​
12.01​
4680​
68.4​
1000​
1450​
12.06​
4680​
68.4​
1000​
1450​
12.1​
4680​
68.4​
1000​
1450​
12.15​
4720​
68.4​
1000​
1450​
12.2​
4720​
68.4​
990​
1450​
12.24​
4720​
69.2​
990​
1450​
12.3​
4720​
69.2​
990​
1450​
12.35​
4760​
68.4​
990​
1450​
12.4​
4760​
69.2​
990​
1450​
12.44​
4760​
69.2​
990​
1450​
12.5​
4760​
69.2​
990​
1450​
12.55​
4800​
69.2​
990​
1450​
12.59​
4800​
69.2​
990​
1450​
12.64​
4800​
69.2​
990​
1450​
12.69​
4800​
69.2​
990​
1460​
12.73​
4800​
69.2​
990​
1460​
12.78​
4840​
69.2​
990​
1450​
12.82​
4840​
69.2​
990​
1450​
12.87​
4840​
69.2​
990​
1460​
12.92​
4840​
69.2​
990​
1460​
12.97​
4880​
69.2​
990​
1460​
13.01​
4880​
69.2​
990​
1460​
13.06​
4880​
69.2​
990​
1460​
13.11​
4880​
69.2​
990​
1460​
13.17​
4880​
69.2​
990​
1460​
13.22​
4920​
69.2​
990​
1460​
13.26​
4920​
69.2​
990​
1460​
13.31​
4920​
69.2​
990​
1460​
13.36​
4920​
69.2​
990​
1460​
13.42​
4960​
69.2​
990​
1460​
13.47​
4960​
69.9​
990​
1460​
13.52​
4960​
69.9​
990​
1460​
13.56​
4960​
69.9​
990​
1460​
13.6​
5000​
69.2​
990​
1460​
13.65​
5000​
69.2​
990​
1460​
13.7​
5000​
69.2​
990​
1460​
13.75​
5000​
69.9​
990​
1460​
13.79​
5000​
69.9​
990​
1460​
13.84​
5000​
69.9​
990​
1460​
13.89​
5040​
69.9​
1000​
1460​
13.93​
5040​
69.9​
990​
1460​
13.98​
5040​
69.9​
990​
1460​
14.03​
5080​
69.9​
1000​
1460​
14.08​
5080​
70.7​
1000​
1460​
14.12​
5080​
70.7​
990​
1460​
14.18​
5080​
70.7​
990​
1460​
14.23​
5120​
70.7​
990​
1460​
14.28​
5120​
70.7​
1000​
1460​
14.33​
5120​
70.7​
990​
1460​
14.38​
5120​
70.7​
990​
1460​
14.42​
5120​
70.7​
990​
1460​
14.47​
5160​
70.7​
990​
1460​
14.51​
5160​
70.7​
990​
1460​
14.56​
5160​
70.7​
990​
1460​
14.61​
5160​
70.7​
990​
1460​
14.65​
5160​
70.7​
990​
1460​
14.7​
5200​
69.9​
990​
1460​
14.74​
5200​
70.7​
990​
1460​
14.79​
5200​
70.7​
990​
1460​
14.84​
5200​
70.7​
990​
1460​
14.89​
5200​
70.7​
990​
1460​
14.93​
5240​
70.7​
990​
1460​
14.98​
5240​
70.7​
990​
1460​
15.03​
5240​
70.7​
990​
1460​
15.08​
5240​
70.7​
990​
1460​
15.12​
5280​
71.4​
990​
1460​
15.17​
5280​
70.7​
990​
1460​
15.21​
5280​
70.7​
990​
1460​
15.27​
5280​
70.7​
990​
1460​
15.31​
5280​
71.4​
990​
1460​
15.37​
5320​
71.4​
990​
1460​
15.42​
5320​
70.7​
990​
1460​
15.46​
5320​
71.4​
990​
1460​
15.52​
5320​
71.4​
990​
1460​
15.56​
5320​
71.4​
990​
1460​
15.61​
5360​
71.4​
990​
1460​
15.65​
5360​
71.4​
990​
1460​
15.7​
5360​
71.4​
990​
1460​
15.74​
5360​
71.4​
990​
1460​
15.79​
5360​
71.4​
990​
1460​
15.85​
5400​
71.4​
990​
1460​
15.89​
5400​
71.4​
990​
1460​
15.94​
5400​
71.4​
990​
1460​
15.98​
5400​
71.4​
990​
1460​
16.03​
5400​
71.4​
990​
1460​
16.07​
5440​
71.4​
990​
1460​
16.12​
5440​
71.4​
990​
1460​
16.17​
5440​
71.4​
990​
1460​
16.22​
5440​
71.4​
990​
1460​
16.27​
5480​
71.4​
990​
1460​
16.31​
5480​
71.4​
990​
1460​
16.36​
5480​
72.2​
990​
1460​
16.4​
5480​
71.4​
990​
1460​
16.45​
5520​
71.4​
990​
1460​
16.5​
5520​
72.2​
1000​
1460​
16.54​
5520​
72.2​
1000​
1460​
16.59​
5520​
72.2​
990​
1460​
16.63​
5560​
72.2​
990​
1460​
16.69​
5560​
72.2​
990​
1470​
16.74​
5560​
72.9​
990​
1470​
16.78​
5560​
72.9​
990​
1470​
16.83​
5560​
72.2​
990​
1470​
16.88​
5560​
72.2​
990​
1470​
16.92​
5600​
72.2​
1000​
1470​
16.97​
5600​
72.9​
990​
1470​
17.02​
5600​
72.9​
990​
1470​
17.06​
5600​
72.9​
990​
1470​
17.11​
5640​
72.2​
990​
1470​
17.15​
5640​
72.2​
990​
1470​
17.2​
5640​
72.2​
1000​
1470​
17.24​
5640​
72.9​
990​
1470​
17.29​
5640​
72.9​
990​
1470​
17.34​
5640​
72.2​
990​
1470​
17.38​
5680​
72.9​
990​
1470​
17.43​
5680​
72.9​
990​
1470​
17.48​
5680​
72.2​
990​
1470​
17.53​
5680​
72.2​
990​
1470​
17.57​
5720​
72.9​
990​
1470​
17.62​
5720​
72.9​
990​
1470​
17.68​
5720​
72.2​
990​
1470​
17.73​
5720​
72.9​
990​
1470​
17.78​
5760​
72.9​
990​
1470​
17.83​
5760​
72.9​
990​
1470​
17.88​
5760​
72.9​
990​
1470​
17.92​
5760​
72.9​
990​
1470​
17.97​
5800​
72.9​
980​
1470​
18.02​
5800​
72.9​
990​
1470​
18.06​
5800​
72.9​
990​
1470​
18.11​
5800​
72.9​
980​
1470​
18.15​
5800​
72.9​
980​
1470​
18.19​
5800​
72.9​
980​
1470​
18.24​
5840​
72.9​
980​
1470​
18.29​
5840​
72.9​
980​
1470​
18.34​
5840​
72.9​
980​
1470​
18.39​
5840​
72.9​
980​
1470​
18.44​
5840​
72.9​
980​
1470​
18.49​
5880​
72.9​
980​
1470​
18.55​
5880​
73.7​
980​
1470​
18.6​
5880​
73.7​
980​
1470​
18.64​
5880​
72.9​
980​
1470​
18.69​
5880​
73.7​
980​
1470​
18.74​
5920​
73.7​
980​
1470​
18.78​
5920​
73.7​
980​
1470​
18.83​
5920​
72.9​
980​
1470​
18.89​
5920​
73.7​
980​
1470​
18.94​
5960​
73.7​
980​
1470​
18.99​
5960​
73.7​
980​
1470​
19.03​
5960​
73.7​
980​
1470​
19.08​
5960​
73.7​
980​
1470​
19.14​
5960​
73.7​
980​
1470​
19.19​
5960​
73.7​
980​
1470​
19.24​
6000​
73.7​
980​
1470​
19.29​
6000​
73.7​
990​
1470​
19.34​
6000​
74.4​
990​
1470​
19.39​
6000​
74.4​
990​
1470​
19.43​
6000​
74.4​
990​
1470​
19.49​
6040​
74.4​
990​
1470​
19.55​
6040​
74.4​
990​
1470​
19.6​
6040​
74.4​
990​
1480​
19.64​
6080​
74.4​
990​
1470​
19.7​
6080​
74.4​
990​
1470​
19.75​
6080​
74.4​
990​
1470​
19.8​
6080​
74.4​
990​
1470​
19.86​
6080​
74.4​
990​
1470​
19.9​
6120​
74.4​
990​
1470​
19.95​
6120​
74.4​
990​
1470​
20​
6120​
74.4​
990​
1470​
20.04​
6120​
74.4​
990​
1470​
20.09​
6120​
74.4​
990​
1470​
20.14​
6160​
74.4​
990​
1470​
20.19​
6200​
74.4​
990​
1470​
20.23​
6160​
75.2​
990​
1470​
20.29​
6160​
75.2​
1000​
1470​
20.34​
6200​
75.2​
1000​
1470​
20.41​
6200​
75.2​
1000​
1470​
20.45​
6200​
75.2​
1000​
1470​
20.5​
6200​
75.2​
1000​
1470​
20.54​
6200​
75.2​
1000​
1470​
20.59​
6240​
75.2​
1000​
1470​
20.64​
6240​
75.2​
1000​
1470​
20.68​
6240​
75.2​
1000​
1470​
20.73​
6240​
75.2​
1000​
1470​

two things: I was looking at my boost gauge the whole time and I never saw it got past 0...so I'm not sure why it's showing my boost got up to 1470 mbar (~6.8 psi)??
second, I was expecting specified to be higher than actual, not sure why it's showing the other way around...but for sure I can guarantee my car never got into boost...
Should I still adjust the WG rod?
 
Last edited:

Chumeta

Passed Driver's Ed
Location
Vitoria-España
Hello, it is perfect, sorry for confusing me in measurement K04, is 1430min to 1500 so it is fine, you dont have to touch the rod you are within the margin, if you want you can press a turn and try to see if you reach 1500, but no is a must, okay.
For those of us who carry K03 it is 1280min to 1300.
Try to log the N75 (already plugged in) but the channel 118 opening cycle. As I told you before, the N75 must be closed at 100% if the current pressure on channel115 does not reach the specified one. If it is not closed all the way it is damaged, you should change it
 

Chumeta

Passed Driver's Ed
Location
Vitoria-España
Ah!!!! also check cracks in the exhaust manifold and turbo shell, a crack would lower the boost somewhat. If you still dont see any damage, tighten the wastegate rod until you get 1500 mbar with N75 unplugged.
 

Whitedemon

Passed Driver's Ed
Location
Miami, FL
Ah!!!! also check cracks in the exhaust manifold and turbo shell, a crack would lower the boost somewhat. If you still dont see any damage, tighten the wastegate rod until you get 1500 mbar with N75 unplugged.

I already checked, there’s no cracks or leaks anywhere (did both pressurized and smoke tests), also I’m sure a crack on the turbo shell or the exhaust manifold would make a lot of noise, my car has zero noise, so those things I can discard.
 

Whitedemon

Passed Driver's Ed
Location
Miami, FL
Hello, it is perfect, sorry for confusing me in measurement K04, is 1430min to 1500 so it is fine, you dont have to touch the rod you are within the margin, if you want you can press a turn and try to see if you reach 1500, but no is a must, okay.
For those of us who carry K03 it is 1280min to 1300.
Try to log the N75 (already plugged in) but the channel 118 opening cycle. As I told you before, the N75 must be closed at 100% if the current pressure on channel115 does not reach the specified one. If it is not closed all the way it is damaged, you should change it

The weird thing is, like I said on my previous post, I didn’t feel the boost at all when I had the n75 unplugged, I even looked at my boost gauge and it never went above 0 psi, so I don’t know why that data is showing that I reached 1470 mbar, my actual boost felt a lot more like what “requested” is showing (990-1000). I must’ve hit 1 psi tops. Is that normal?
when you say a turn, is that a full turn to the inner nut?
 

Whitedemon

Passed Driver's Ed
Location
Miami, FL
here are blocks 117 & 118 (actual vs specified & N75 duty cycle) log

Column2Column3Column5Column6Column11
Group A:'118
Engine SpeedBoost PressureBoost PressureBoost Pressure
TIME(G28)Control (N75)(actual)(specified)
STAMP/min%mbarmbar
0.15​
2160​
99.6​
1170​
1810​
0.33​
2240​
99.6​
1220​
1890​
0.52​
2320​
99.6​
1290​
1940​
0.71​
2400​
99.6​
1370​
2020​
0.9​
2480​
99.6​
1450​
2090​
1.08​
2600​
99.6​
1550​
2100​
1.27​
2680​
99.6​
1670​
2120​
1.46​
2800​
81.2​
1800​
2130​
1.65​
2920​
43.9​
1960​
2200​
1.83​
3040​
46.3​
2110​
2250​
2.03​
3160​
46.7​
2220​
2350​
2.21​
3280​
55.7​
2350​
2440​
2.4​
3400​
54.1​
2440​
2500​
2.58​
3520​
54.5​
2470​
2530​
2.77​
3680​
55.7​
2470​
2530​
2.96​
3800​
56.1​
2500​
2530​
3.15​
3920​
55.3​
2510​
2530​
3.33​
4080​
56.5​
2500​
2530​
3.54​
4240​
57.3​
2500​
2530​
3.73​
4360​
58.4​
2470​
2540​
3.93​
4560​
59.6​
2480​
2540​
4.12​
4680​
60.4​
2490​
2530​
4.3​
4800​
60.8​
2500​
2520​
4.49​
4960​
60.8​
2510​
2500​
4.68​
5080​
59.6​
2530​
2490​
4.86​
5200​
58​
2530​
2480​
5.06​
5280​
56.9​
2490​
2460​
5.24​
5440​
56.5​
2410​
2450​
5.44​
5560​
58​
2340​
2440​
5.63​
5680​
61.6​
2340​
2410​
5.82​
5800​
62.7​
2370​
2400​
6.01​
5920​
62.7​
2390​
2380​
6.2​
6040​
61.6​
2390​
2380​
6.38​
6160​
60.8​
2360​
2360​
6.58​
6240​
60.8​
2320​
2350​
6.77​
6320​
62.7​
2280​
2350​
6.97​
6440​
65.1​
2270​
2340​
7.18​
6560​
67.5​
2260​
2330​
7.37​
6640​
69.4​
2270​
2330​

Looks like the WG starts to open around 2800 RPMs before actual meets specified...
 
Last edited:

Chumeta

Passed Driver's Ed
Location
Vitoria-España
As you can see, and you correctly say, the N75 opens without reaching the specified value, so obviously the N75 fails you should be closed, so I think you should put a new one
 

Chumeta

Passed Driver's Ed
Location
Vitoria-España
That pressure is what the spring of your wastegate supports and the pressure limp mode . 1470mbar is absolute pressure , 470 mbar is relative = 0,470bar = 6,816 psi always talking about current not specified.

The rod is adjusted by loosening the nut closest to the can (the inner one). Mark one face of the outer nut and tighten a full turn (towards the wastegate) then lock with the other nut in the opposite direction so that it does not move.
 
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