KO4 Help

[Is.youssef]

H there need your help, please

Some info here. I'm in a 2013 MK6R K04, Forge intake and 3 inch downpipe.I'm running Unitronic Stage 2+ tune (93 octane). have an issue that boost kicks in and then it just seems to die off. My boost gauge shows that boost touches 20-21psi and then just constantly drops until it's dropped to about 12psi. From looking at the logs, it appears that's not the case, but I'm wondering why I see that on the boost gauge. N75 seems to drop off early (or be all over the place). And on two of my runs, my throttle valve angle went to about 50% after boost kicked in even though the accel pedal was pegged the whole time.

any thoughts? my car is running like crap

TIME

Group 2 - Field 0

TIME

Group 2 - Field 3

TIME

Group 6 - Field 2

TIME

Group 20 - Field 0

TIME

Group 20 - Field 1

TIME

Group 20 - Field 2

TIME

Group 20 - Field 3

TIME

Group 31 - Field 0

TIME

Group 61 - Field 2

TIME

Group 114 - Field 3

TIME

Group 115 - Field 2

TIME

Group 118 - Field 3

STAMP

Engine Speed - (G28)

STAMP

Mass Air Flow - Sensor (G70)

STAMP

Intake Air - Temperature (G42)

STAMP

Timing Retardation - Cylinder 1

STAMP

Timing Retardation - Cylinder 2

STAMP

Timing Retardation - Cylinder 3

STAMP

Timing Retardation - Cylinder 4

STAMP

Lambda Control - Bank 1 (actual)

STAMP

Throttle Valve Angle

STAMP

Boost Pressure - Control (N75)

STAMP

Boost Pressure - (specified)

STAMP

Boost Pressure - (actual)

/min

g/s

°C

°KW

°KW

°KW

°KW

%

%

mbar

mbar

0.04​

3960​

0.04​

44.61​

0.09​

43​

0.14​

0​

0.14​

0​

0.14​

0​

0.14​

0​

0.19​

0.95​

0.24​

25.9​

0.27​

0.8​

0.32​

1110​

0​

1360​

0.43​

4040​

0.43​

75.69​

0.48​

43​

0.53​

0​

0.53​

0​

0.53​

0​

0.53​

0​

0.57​

1.03​

0.62​

45.9​

0.67​

49.4​

0.71​

2410​

0.38​

1560​

0.82​

4200​

0.82​

139.03​

0.87​

44​

0.91​

0​

0.91​

0​

0.91​

-4.5​

0.91​

0​

0.96​

0.97​

1.02​

40.4​

1.06​

56.9​

1.11​

2400​

0.77​

1950​

1.2​

4440​

1.2​

155.42​

1.26​

44​

1.31​

-1.5​

1.31​

0​

1.31​

-3.8​

1.31​

-1.5​

1.36​

0.88​

1.41​

43.9​

1.46​

50.6​

1.51​

2400​

1.15​

2620​

1.6​

4680​

1.6​

156.03​

1.66​

43​

1.7​

-1.5​

1.7​

0​

1.7​

-3.8​

1.7​

-1.5​

1.74​

0.86​

1.8​

47.5​

1.84​

48.6​

1.88​

2410​

1.55​

2640​

1.98​

4960​

1.98​

158.28​

2.02​

42​

2.08​

-0.8​

2.08​

0​

2.08​

-3​

2.08​

-0.8​

2.12​

0.88​

2.17​

49​

2.21​

50.6​

2.27​

2430​

1.93​

2460​

2.37​

5200​

2.37​

169.22​

2.43​

42​

2.48​

-0.8​

2.48​

0​

2.48​

-3​

2.48​

-0.8​

2.53​

0.85​

2.58​

49.8​

2.62​

52.5​

2.67​

2450​

2.33​

2450​

2.76​

5440​

2.76​

180.53​

2.8​

42​

2.86​

0​

2.86​

0​

2.86​

-3​

2.86​

0​

2.9​

0.84​

2.94​

50.6​

2.99​

53.7​

3.04​

2440​

2.72​

2490​

3.13​

5680​

3.13​

188.75​

3.18​

42​

3.23​

0​

3.23​

0​

3.23​

-2.3​

3.23​

0​

3.28​

0.82​

3.34​

51.8​

3.39​

55.7​

3.45​

2400​

3.09​

2490​

3.54​

5960​

3.54​

195.67​

3.59​

41​

3.64​

0​

3.64​

0​

3.64​

-2.3​

3.64​

0​

3.68​

0.81​

3.72​

52.2​

3.77​

55.7​

3.82​

2370​

3.49​

2470​

3.91​

6160​

3.91​

205.33​

3.96​

41​

4.01​

0​

4.01​

0​

4.01​

-1.5​

4.01​

0​

4.06​

0.8​

4.11​

61.2​

4.15​

54.9​

4.19​

2330​

3.87​

2480​

4.29​

6400​

4.29​

214.89​

4.35​

41​

4.4​

0​

4.4​

0​

4.4​

-1.5​

4.4​

0​

4.44​

0.8​

4.49​

85.5​

4.54​

56.5​

4.59​

2280​

4.24​

2370​

4.69​

6600​

4.69​

215.67​

4.74​

42​

4.79​

0​

4.79​

0​

4.79​

-1.5​

4.79​

0​

4.84​

0.8​

4.88​

85.9​

4.93​

57.6​

4.98​

2250​

4.64​

2330​

5.07​

6760​

5.07​

219.69​

5.11​

42​

5.17​

0​

5.17​

0​

5.17​

-0.8​

5.17​

0​

5.21​

1.99​

5.25​

85.9​

5.3​

72.2​

5.34​

2460​

5.02​

2290​

5.45​

5160​

5.45​

200.53​

5.5​

42​

5.55​

0​

5.55​

0​

5.55​

-2.3​

5.55​

-1.5​

5.59​

0.86​

5.64​

80.4​

5.7​

52.5​

5.74​

2440​

5.4​

2600​

5.83​

5280​

5.83​

191.36​

5.88​

42​

5.93​

0​

5.93​

0​

5.93​

-2.3​

5.93​

-1.5​

5.98​

0.79​

6.03​

89​

6.08​

52.5​

6.13​

2450​

5.79​

2600​

6.23​

5440​

6.23​

186.11​

6.28​

43​

6.33​

0​

6.33​

0​

6.33​

-1.5​

6.33​

-0.8​

6.38​

0.83​

6.44​

90.6​

6.49​

56.9​

6.53​

2460​

6.17​

2430​

6.63​

5560​

6.63​

200.5​

6.68​

43​

6.72​

0​

6.72​

0​

6.72​

-1.5​

6.72​

-0.8​

6.77​

0.81​

6.82​

88.2​

6.86​

57.6​

6.91​

2430​

6.58​

2480​

7​

5680​

7​

208.06​

7.06​

44​

7.11​

0​

7.11​

0​

7.11​

-1.5​

7.11​

-0.8​

7.16​

0.8​

7.21​

87.8​

7.26​

56.9​

7.3​

2410​

6.96​

2560​

7.41​

5840​

7.41​

206.14​

7.46​

44​

7.51​

0​

7.51​

0​

7.51​

-0.8​

7.51​

0​

7.56​

0.8​

7.61​

88.2​

7.66​

56.9​

7.7​

2390​

7.36​

2510​

7.8​

5960​

7.8​

207.11​

7.84​

44​

7.9​

0​

7.9​

0​

7.9​

-0.8​

7.9​

0​

7.95​

0.8​

7.99​

87.8​

8.05​

57.3​

8.11​

2370​

7.76​

2470​

8.21​

6080​

8.21​

211.28​

8.26​

44​

8.32​

0​

8.32​

0​

8.32​

0​

8.32​

0​

8.37​

0.8​

8.42​

87.5​

8.47​

56.9​

8.52​

2350​

8.16​

2440​

8.63​

6240​

8.63​

212.89​

8.67​

44​

8.71​

0​

8.71​

0​

8.71​

0​

8.71​

0​

8.76​

0.8​

8.82​

87.5​

8.87​

57.3​

8.92​

2330​

8.57​

2430​

9.02​

6360​

9.02​

212.31​

9.06​

44​

9.1​

0​

9.1​

0​

9.1​

0​

9.1​

0​

9.16​

0.78​

9.2​

87.5​

9.25​

57.6​

9.3​

2310​

8.97​

2390​

9.39​

6440​

9.39​

216.11​

9.44​

44​

9.5​

0​

9.5​

0​

9.5​

0​

9.5​

0​

9.55​

0.79​

9.6​

86.7​

9.64​

57.6​

9.69​

2290​

9.35​

2390​

9.8​

6560​

9.8​

219.61​

9.85​

45​

9.88​

0​

9.88​

0​

9.88​

0​

9.88​

0​

9.93​

0.8​

9.98​

86.3​

10.03​

56.9​

10.08​

2270​

9.75​

2390​

10.18​

6680​

10.18​

219.03​

10.23​

45​

10.27​

0​

10.27​

0​

10.27​

0​

10.27​

0​

10.32​

0.79​

10.38​

86.3​

10.42​

57.3​

10.47​

2250​

10.13​

2350​

10.59​

5920​

10.59​

194.19​

10.64​

45​

10.68​

0​

10.68​

0​

10.68​

0​

10.68​

0​

10.73​

0.92​

10.78​

18.8​

10.83​

0​

10.87​

430​

10.53​

2310​

10.96​

5040​

10.96​

19.08​

11.01​

45​

11.06​

0​

11.06​

0​

11.06​

0​

11.06​

0​

11.11​

0.93​

11.16​

9.8​

11.2​

0​

11.24​

290​

10.91​

2180​

 

[Hoosier Daddy]

Hi bro,

how are the LPFP and rail pressures looking?

 

[Is.youssef]

Heyy

So LPFP was at 5.5 bars. Not dropping. Rail maxes ro 132 which looks ok.
So issue is now resolved. Changing the fuel filter cleared the pressure code and the boost issues were from the waste gate actuator which i also replaced with a Forge one.