Fuel Rail Pressure Too Low-Tested Injectors

passdattdi · Apr 16, 2024

And here is actual/specified:

Tuesday
16
April
2024
14:01:27:01454-VCID:3B233CC303E5FA323A1-806E VCDS Version: Release 23.11.0 (x64) Data version: 20231027 DS351.0
03L 997 009 J ADVMB R4 2.0l TDI H23 9982
G025 F0 G031 F0 G000
Marker TIME Loc. IDE00188 TIME Loc. IDE00201
STAMP Fuel high-pressure: actual value STAMP High fuel pressure: specified value
hPa hPa
0.08
327100
0.13
325500
0.18
327100
0.23
325500
0.33
327100
0.38
325500
0.44
324600
0.49
325400
0.58
327100
0.63
325400
0.68
327100
0.74
325600
0.83
324600
0.88
325600
0.94
324600
0.99
325600
1.08
327100
1.15
325500
1.24
327100
1.31
325400
1.39
322200
1.45
325300
1.54
324600
1.59
325300
1.65
324600
1.7
325300
1.8
324600
1.86
325300
1.96
327100
2.03
325400
2.11
327100
2.18
325500
2.27
324600
2.33
325500
2.43
324600
2.49
325600
2.59
327100
2.65
325500
2.74
329500
2.79
325500
2.88
324600
2.94
325500
3.03
324600
3.08
325500
3.14
324600
3.19
325400
3.27
324600
3.32
325300
3.41
322200
3.46
325400
3.52
324600
3.57
325400
3.65
324600
3.71
325300
3.77
327100
3.82
325200
3.91
324600
3.97
325300
4.05
324600
4.1
325400
4.19
324600
4.26
325400
4.35
327100
4.41
325300
4.51
327100
4.57
325400
4.66
322200
4.72
325500
4.82
327100
4.88
325400
4.98
327100
5.03
325400
5.12
324600
5.18
325500
5.24
324600
5.3
325600
5.37
327100
5.43
325500
5.49
327100
5.56
325400
5.62
324600
5.68
325500
5.74
322200
5.81
325500
5.87
327100
5.93
325500
6
324600
6.06
325500
6.11
327100
6.18
325400
6.24
324600
6.3
325400
6.36
324600
6.39
325600
6.44
322200
6.5
325500
6.58
324600
6.63
325300
6.72
322200
6.77
325400
6.83
322200
6.87
325400
6.97
324600
7.02
325400
7.08
324600
7.12
325400
7.22
327100
7.27
325500
7.32
324600
7.38
325400
7.47
324600
7.51
325300
7.58
324600
7.63
325300
7.72
324600
7.79
325400
7.87
329500
7.93
325400
7.99
329500
8.04
325600
8.12
324600
8.18
325600
8.24
327100
8.3
325600
8.37
327100
8.42
325600
8.49
324600
8.55
325600
8.6
324600
8.66
325600
8.74
327100
8.8
325400
8.85
324600
8.91
325400
9
324600
9.05
325500
9.11
327100
9.16
325500
9.26
324600
9.31
325400
9.41
327100
9.46
325400
9.52
327100
9.56
325300
9.67
327100
9.72
325400
9.81
324600
9.87
325500
9.97
324600
10.04
325400
10.14
327100
10.2
325400
10.3
327100
10.34
325400
10.41
324600
10.47
325400
10.55
327100
10.59
325500
10.67
324600
10.72
325400
10.8
327100
10.85
325200
10.91
327100
10.94
325300
11
324600
11.05
325300
11.14
327100
11.19
325400
11.27
327100
11.32
325500
11.41
327100
11.47
325600
11.54
327100
11.6
325700
11.66
327100
11.71
325800
11.79
327100
11.85
325800
11.91
327100
11.95
325800
12.05
327100
12.1
325900
12.16
327100
12.21
325900
12.31
327100
12.37
325900
12.46
324600
12.53
325800
12.61
324600
12.67
325800
12.77
327100
12.84
325900
12.93
329500
12.99
325900
13.09
327100
13.15
325800
13.24
322200
13.3
326000
13.4
327100
13.45
326000
13.53
327100
13.57
326000
13.66
324600
13.7
325900
13.75
324600
13.8
325900
13.89
324600
13.94
325800
14
324600
14.05
325800
14.14
324600
14.19
325800
14.25
327100
14.3
325900
14.4
324600
14.46
325900
14.55
329500
14.6
326000
14.66
327100
14.71
326000
14.79
329500
14.85
326100
14.91
327100
14.95
326100
15.04
329500
15.09
326100
15.16
329500
15.23
326000
15.29
324600
15.35
325900
15.41
327100
15.46
325800
15.56
327100
15.62
325900
15.7
324600
15.78
326000
15.87
324600
15.92
326000
16.02
324600
16.09
326000
16.17
327100
16.25
326000
16.34
327100
16.4
326000
16.48
327100
16.52
326000
16.6
324600
16.65
326100
16.73
327100
16.78
326000
16.86
324600
16.9
326100
16.96
327100
17.01
326100
17.1
324600
17.15
326100
17.24
324600
17.29
326000
17.38
322200
17.44
326100
17.52
327100
17.59
326200
17.68
327100
17.74
326300
17.84
324600
17.9
326300
17.98
324600
18.06
326200
18.15
324600
18.21
326200
18.3
327100
18.37
326100
18.47
331900
18.51
326200
18.56
327100
18.61
326300
18.68
324600
18.72
326400
18.78
324600
18.83
326300
18.91
324600
18.95
326100
19.04
327100
19.08
326100
19.17
327100
19.21
326100
19.3
327100
19.33
326100
19.42
327100
19.47
326100
19.54
327100
19.59
326100
19.66
327100
19.72
326300
19.8
324600
19.84
326200
19.9
324600
19.95
326200
20.05
327100
20.1
326300
20.15
324600
20.21
326300
20.3
324600
20.35
326200
20.41
324600
20.46
326200
20.55
324600
20.59
326200
20.66
324600
20.71
326300
20.8
327100
20.85
326300
20.92
327100
20.98
326300
21.04
324600
21.11
326300
21.17
327100
21.22
326300
21.3
324600
21.33
326300
21.42
327100
21.47
326300
21.53
324600
21.58
326300
21.66
327100
21.7
326200
21.75
322200
21.8
326200
21.88
324600
21.94
326300
22
324600
22.05
326200
22.14
324600
22.18
326100
22.27
327100
22.33
326100
22.38
324600
22.43
326000
22.52
324600
22.58
326100
22.63
324600
22.69
326200
22.77
324600
22.83
326000
22.93
327100
22.98
326100
23.09
327100
23.15
326300
23.24
327100
23.31
326400
23.4
324600
23.45
326300
23.56
327100
23.62
326200
23.72
331900
23.77
326300
23.83
327100
23.9
326400
23.96
327100
24.02
326400
24.08
327100
24.13
326400
24.22
327100
24.26
326200
24.33
327100
24.37
326000
24.47
327100
24.52
326100
24.58
327100
24.63
326000
24.73
327100
24.79
326200
24.88
327100
24.94
326300
25.03
324600
25.1
326200
25.19
327100
25.26
326100
25.36
327100
25.42
326100
25.51
327100
25.57
326200
25.66
327100
25.72
326200
25.77
327100
25.84
326100
25.9
324600
25.95
326300
26.04
324600
26.09
326400
26.19
324600
26.23
326200
26.29
324600
26.36
326200
26.41
324600
26.46
326100
26.55
327100
26.59
326300
26.66
327100
26.71
326300
26.8
324600
26.85
326400
26.94
324600
26.99
326400
27.05
324600
27.1
326400
27.18
327100
27.24
326300
27.3
324600
27.35
326300
27.44
324600
27.49
326200
27.55
324600
27.6
326200
27.69
324600
27.73
326200
27.8
327100
27.85
326200
27.94
324600
27.99
326400
28.04
324600
28.1
326400
28.19
327100
28.26
326300
28.34
327100
28.41
326300
28.51
327100
28.57
326300
28.66
327100
28.73
326100
28.82
327100
28.88
326100
28.98
324600
29.04
326100
29.13
327100
29.19
326200
29.29
324600
29.35
326200
29.45
324600
29.51
326200
29.59
327100
29.65
326300
29.7
324600
29.78
326300
29.83
324600
29.9
326300
29.96
327100
30.03
326300
30.09
324600
30.15
326400
30.21
324600
30.26
326200
30.31
322200
30.35
326200
30.43
327100
30.48
326200
30.58
324600
30.63
326200
30.68
324600
30.73
326300
30.83
327100
30.88
326400
30.94
327100
30.99
326400
31.08
324600
31.13
326300
31.19
324600
31.24
326200
31.33
324600
31.37
326300
31.44
324600
31.49
326400
31.57
324600
31.62
326300
31.68
324600
31.74
326200
31.84
324600
31.89
326100
31.98
324600
32.05
326200
32.15
327100
32.21
326400
32.31
327100
32.36
326300
32.46
324600
32.53
326300
32.61
327100
32.67
326300
32.76
324600
32.81
326400
32.9
329500
32.97
326300
33.06
327100
33.11
326400
33.19
324600
33.24
326400
33.31
327100
33.36
326400
33.45
324600
33.49
326400
33.58
324600
33.62
326300
33.7
322200
33.75
326400
33.83
327100
33.87
326400
33.96
324600
34.01
326400
34.11
322200
34.16
326400
34.22
324600
34.27
326300
34.36
324600
34.41
326200
34.48
327100
34.53
326200
34.6
327100
34.66
326300
34.72
322200
34.77
326200
34.87
324600
34.93
326200
35.03
327100
35.09
326300
35.17
327100
35.22
326400
35.31
327100
35.36
326400
35.42
327100
35.47
326300
35.55
327100
35.59
326300
35.67
329500
35.72
326400
35.8
327100
35.84
326400
35.92
324600
35.97
326500
36.05
329500
36.08
326400
36.17
327100
36.22
326300
36.29
327100
36.34
326200
36.41
329500
36.44
326300
36.5
324600
36.55
326300
36.64
327100
36.69
326400
36.75
324600
36.8
326400
36.9
324600
36.96
326400
37.05
327100
37.1
326200
37.16
327100
37.21
326200
37.3
327100
37.35
326400
37.41
327100
37.48
326400
37.54
327100
37.6
326300
37.67
327100
37.73
326200
37.79
329500
37.86
326100
37.92
329500
37.97
326200
38.04
327100
38.11
326300
38.2
327100
38.25
326300
38.33
327100
38.36
326400
38.41
327100
38.47
326400
38.54
327100
38.59
326400
38.69
327100
38.74
326400
38.8
327100
38.86
326300
38.94
327100
38.99
326300
39.05
324600
39.1
326300
39.19
327100
39.24
326300
39.3
331900
39.35
326200
39.44
327100
39.49
326400
39.56
329500
39.62
326400
39.68
327100
39.74
326400
39.81
327100
39.87
326400
39.93
327100
40
326300
40.06
327100
40.12
326300
40.18
327100
40.25
326200
40.31
327100
40.37
326400
40.44
327100
40.49
326400
40.58
327100
40.62
326300
40.72
327100
40.76
326200
40.83
329500
40.87
326300
40.96
324600
41.01
326300
41.09
329500
41.15
326200
41.26
327100
41.32
326200
41.41
324600
41.48
326400
41.57
327100
41.64
326200
41.73
327100
41.79
326200
41.87
322200
41.93
326300
42
327100
42.06
326300
42.12
327100
42.16
326300
42.23
327100
42.28
326400
42.36
327100
42.4
326300
42.47
327100
42.53
326300
42.61
327100
42.66
326300
42.72
327100
42.77
326200
42.85
327100
42.91
326200
42.97
327100
43.02
326200
43.1
327100
43.16
326200
43.21
327100
43.27
326300
43.36
327100
43.42
326400
43.52
324600
43.59
326400
43.68
324600
43.73
326400
43.82
327100
43.89
326300
43.94
327100
44
326300
44.09
327100
44.14
326300
44.19
327100
44.25
326300
44.32
327100
44.36
326300
44.45
327100
44.5
326100
44.57
329500
44.63
326200
44.69
324600
44.73
326300
44.83
329500
44.88
326400
44.94
327100
44.99
326400
45.07
327100
45.12
326400
45.21
324600
45.27
326400
45.35
329500
45.41
326500

passdattdi · Apr 16, 2024

Now a Cylinder 3 problem. Maybe finally leading to something?

Code:

Tuesday,16,April,2024,14:24:30:01454
VCDS Version: Release 23.11.0 (x64) Running on Windows 11 x64
www.Ross-Tech.com

                Address 01: Engine       Labels: 03L-906-022-CFC.clb
Control Module Part Number: 03L 997 009 J    HW: 03L 907 309 S
  Component and/or Version: R4 2.0l TDI   H23 9982
           Software Coding: 001D0012042400000000
            Work Shop Code: WSC 22194 444 00000
              ASAM Dataset: EV_ECM20TDI01103L997009J 004005 (VW41)
                       ROD: EV_ECM20TDI01103L997009H.rod
                      VCID: 3B233CC303E5FA323A1-806E
6 Faults Found:

5211 - Fuel Rail/System Pressure 
          P0087 00 [10101111] - Too Low
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 3
                    Mileage: 222620 km
                    Date: 2127.14.07
                    Time: 01:31:55

                    Engine RPM: 1716.00 /min
                    Normed load value: 76.9 %
                    Vehicle speed: 75 km/h
                    Coolant temperature: 104 °C
                    Intake air temperature: 27 °C
                    Ambient air pressure: 990 mbar
                    Voltage terminal 30: 14.340 V
                    Unlearning counter according OBD: 40
                    Fuel temperature: 46.6 °C
                    Mean injection quantity: 25.79 mg/stroke
                    Rail pressure regulation: status-Bits 0-7: 5
                    Fuel high-pressure: actual value: 1382000 hPa
                    High fuel pressure: specified value: 1616700 hPa
                    Pressure control valve adaptation factor: 1.0000
                    Fuel level: 15.00 l

5212 - Fuel Rail/System Pressure 
          P0087 00 [00101100] - Too Low
          Intermittent - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 222620 km
                    Date: 2127.14.07
                    Time: 01:31:57

                    Engine RPM: 1740.00 /min
                    Normed load value: 99.6 %
                    Vehicle speed: 76 km/h
                    Coolant temperature: 104 °C
                    Intake air temperature: 27 °C
                    Ambient air pressure: 990 mbar
                    Voltage terminal 30: 14.340 V
                    Unlearning counter according OBD: 40
                    Fuel temperature: 46.7 °C
                    Mean injection quantity: 22.81 mg/stroke
                    Rail pressure regulation: status-Bits 0-7: 5
                    Fuel high-pressure: actual value: 1386900 hPa
                    High fuel pressure: specified value: 1600300 hPa
                    Pressure control valve adaptation factor: 1.0000
                    Fuel level: 15.00 l

8813 - Cylinder 3 Internal Pressure Sensor 
          P13D4 00 [10101111] - Short to Plus
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 2
                    Mileage: 222623 km
                    Date: 2127.14.07
                    Time: 02:59:29

                    Engine RPM: 826.00 /min
                    Normed load value: 29.8 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 82 °C
                    Intake air temperature: 37 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.040 V
                    Unlearning counter according OBD: 40
                    Maximum cylinder 3 cylinder pressure: 143.523 bar
                    Cylinder 3 max pressure position in deceleration mode: 0.00 °
                    Cylinder_pressure_offset_cylinder_3: -86.844 bar
                    Malfunction status of combustion chamber pressure of cylinder 3-Bits 0-7: 10
                    Group run time cylinder pressure sensor 3: -11.2 µs

8817 - Cylinder 3 Internal Pressure Sensor 
          P13D5 00 [00100100] - Short to Ground
          [Sensor for internal pressure of cylinder 3Short circuit to ground (GND)]
          Intermittent - Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 222623 km
                    Date: 2127.14.07
                    Time: 03:17:46

                    Engine RPM: 829.50 /min
                    Normed load value: 21.6 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 97 °C
                    Intake air temperature: 40 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.260 V
                    Unlearning counter according OBD: 40
                    Maximum cylinder 3 cylinder pressure: 231.766 bar
                    Cylinder 3 max pressure position in deceleration mode: 0.00 °
                    Cylinder_pressure_offset_cylinder_3: 1.398 bar
                    Malfunction status of combustion chamber pressure of cylinder 3-Bits 0-7: 2
                    Group run time cylinder pressure sensor 3: -11.2 µs

8825 - Cylinder 3 Internal Pressure Sensor 
          P13D6 00 [10101111] - Implausible Signal
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 2
                    Mileage: 222623 km
                    Date: 2127.14.07
                    Time: 03:01:02

                    Engine RPM: 828.50 /min
                    Normed load value: 23.9 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 81 °C
                    Intake air temperature: 37 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.320 V
                    Unlearning counter according OBD: 40
                    Maximum cylinder 3 cylinder pressure: 255.992 bar
                    Cylinder 3 max pressure position in deceleration mode: 0.00 °
                    Cylinder_pressure_offset_cylinder_3: 32.906 bar
                    Malfunction status of combustion chamber pressure of cylinder 3-Bits 0-7: 10
                    Group run time cylinder pressure sensor 3: -11.2 µs

8863 - Particulate Filter 
          P2459 00 [01100101] - Regeneration Frequency
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 222623 km
                    Date: 2127.14.07
                    Time: 03:23:46

                    Engine RPM: 1318.50 /min
                    Normed load value: 64.3 %
                    Vehicle speed: 55 km/h
                    Coolant temperature: 98 °C
                    Intake air temperature: 34 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.340 V
                    Unlearning counter according OBD: 40
                    Exhaust gas jet volume in particle filter: 126.1 m³/h
                    Particle filter: difference pressure: 105 hPa
                    Particle filter: soot mass measured: 24.14 g
                    Particle filter: soot mass calculated: 24.12 g
                    Particle filter: differential pressure: dynamic offset: -8 hPa
                    Exhaust gas temperature sensor 3: 204.0 °C
                    Exhaust gas temperature sensor 4: 135.7 °C


Readiness: 1 3 0 0 1

passdattdi · Apr 16, 2024

Sorry, nvm the cylinder issue. Was loose glow plug harness.

SaVAGeSoot · Apr 17, 2024

Your logs are short, but nothing jumps out.
You should also graph logs using something like https://log.tunezilla.com/ to make them easier to view and analyze.
Now that you've addressed the harness issue, clear the codes and see under what condition they repeat again.

passdattdi · Apr 17, 2024

This morning when engine still cold, got on it pretty hard test driving it. Working fine. Afetr about two miles when engine temp was almost normal at 190, light came on.

Code:

Wednesday,17,April,2024,07:10:52:01454
VCDS Version: Release 23.11.0 (x64) Running on Windows 11 x64
www.Ross-Tech.com

                Address 01: Engine       Labels: 03L-906-022-CFC.clb
Control Module Part Number: 03L 997 009 J    HW: 03L 907 309 S
  Component and/or Version: R4 2.0l TDI   H23 9982
           Software Coding: 001D0012042400000000
            Work Shop Code: WSC 22194 444 00000
              ASAM Dataset: EV_ECM20TDI01103L997009J 004005 (VW41)
                       ROD: EV_ECM20TDI01103L997009H.rod
                      VCID: 3B233CC303E5FA323A1-806E
1 Fault Found:

5211 - Fuel Rail/System Pressure
          P0087 00 [10101111] - Too Low
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Priority: 2
                    Fault Frequency: 2
                    Mileage: 222632 km
                    Date: 2127.14.07
                    Time: 20:00:11

                    Engine RPM: 3102.50 /min
                    Normed load value: 99.6 %
                    Vehicle speed: 70 km/h
                    Coolant temperature: 70 °C
                    Intake air temperature: 32 °C
                    Ambient air pressure: 990 mbar
                    Voltage terminal 30: 14.400 V
                    Unlearning counter according OBD: 40
                    Fuel temperature: 21.5 °C
                    Mean injection quantity: 58.53 mg/stroke
                    Rail pressure regulation: status-Bits 0-7: 5
                    Fuel high-pressure: actual value: 1599300 hPa
                    High fuel pressure: specified value: 1796500 hPa
                    Pressure control valve adaptation factor: 1.1542
                    Fuel level: 14.00 l


Readiness: 1 1 0 0 1

SaVAGeSoot · Apr 17, 2024

CODE WRAP

Can you not afford fuel? :confused:

You're always running low.... maybe you're starving the pump pickup with your antics... run with a decent fuel level to eliminate this possibility.

SaVAGeSoot · Apr 17, 2024

passdattdi said:
Fuel level: 3.00 l
Fuel level: 15.00 l
Fuel level: 14.00 l

passdattdi · Apr 17, 2024

LOL, Nice catch. Actually, yes i am aware of fuel level. These fuel levels are recent. I have had at least 3 quarters of a tank in there continuosly while trouble shooting this problem. I decided to let it run low for possibility of bad batch of fuel maybe and using it up and out of the system .

SaVAGeSoot · Apr 17, 2024

passdattdi said:
possibility of bad batch of fuel maybe

"saving" $50 worth of diesel while allowing potential bad fuel to grenade the rest of your CR fuel system..... oh, OK... carry on! :thumbs:

passdattdi · Apr 17, 2024

This may be nothing, but i accessed the in-tank fuel pump just to check and see if the lines were not in there backwards. I noticed that when i pulled the electrical plug off the pump, it came off pretty easy. It wasn't clipped all the way. I made sure to push all the way in. Cleared codes. With engine running, i pulled the plug again. As would be expected, car turned off. I did notice the glow plug sign flashed when plug came off as it does when I have this problem. I ran the scanner and it did have same low fuel pressure code, and no other coeds. I realize this is all expected since the supply pump is being disabled and so the problem is merely being duplicated. But, might this maybe isolate the in-tank pump as issue or say anything?

passdattdi · Apr 17, 2024

NOt saving $ issue. I will fill up.

passdattdi · Apr 17, 2024

Filled up. 4 miles after and same deal.
Fuel high pressure specified value:1694500hPa
Fuel high pressure actual value:1496800hPa.

No network where I am to post entire log from laptop.

SaVAGeSoot · Apr 18, 2024

Why can't you clear faults and then log both intank pump and rail pressure from start until the fault takes place to see if anything is revealed?

passdattdi · Apr 18, 2024

While driving? Because when parked in idle there are no problems, only under load. If While driving, do i just log the same way as when parked as far as VCDS procedure? As far as logging Rail Pressure specifically, is there a command on vcds or just do the transfer fuel pump test? I have searched for videos on how to test with vcds, but usually they show Measuring Blocks approach; that function on my vcds is grayed out.

SaVAGeSoot · Apr 18, 2024

Huh? What are you asking?
Are you reading your codes and FF data? If so, when does the fault happen? (correct, while driving)..... so you need to see what's going on while driving... this means you need to have logs from "while driving" not for sitting idle.
MVBs are grayed out because you have a UDS controller so you need to use Advanced Measuring Values instead.

passdattdi · Apr 18, 2024

Measuring values..! Got it.

jremi17 · Aug 14, 2024

Hi @passdattdi, I have a very similar issue to yours. Did you sort it out?

Thank you!

Dr Sheldon · Aug 14, 2024

vladp11 said:
Hi @passdattdi, I have a very similar issue to yours. Did you sort it out?

Thank you!

Start a new thread with a autoscan please.

passdattdi · Aug 14, 2024

vladp11 said:
Hi @passdattdi, I have a very similar issue to yours. Did you sort it out?

Thank you!

I Have not sort it yet. Took a break from it so nothing else been done. Hope you post your issues and scan . Maybe i'll learn something new with your experience. Soon as I start back on mine I will post update.

jackofromtheuk · Aug 17, 2024

passdattdi said:
I Have not sort it yet. Took a break from it so nothing else been done. Hope you post your issues and scan . Maybe i'll learn something new with your experience. Soon as I start back on mine I will post update.

I posted a break down of my HPFP setup here since your post. May be of help but seems you have also taken apart to the same extent, as I've accrued enough bits to fully replace the entire fuel system. But one thing it seems you haven't replaced is the check valve in the HPFP (although you've recently been made aware of it's existence). I've been bitten by this no fewer than 3 times (stuck open once, replaced twice).

It may even be just that your pump is weak. Maybe the cam has worn too much or the piston is no longer holding higher pressures. I bought a fuel pump for £40 recently and swapped the head because of said check valve (plus the piston, in case it'd worn to the shape of the head or something). Not expensive nor difficult to do. If you do this, be 100% sure it's the same pump (or the same specifications) as there are slight differences between them which, even if they physically fit, could add to under/overfuelling.

There are many components to the CR fuel system but in reality it's pretty simple. I could draw you a comprehensive diagram in a minute or so. There's only a limited number of components that can cause loss of fuel pressure.

https://imgur.com/a/2OSSlWg

ETA, if you do go shopping for second hand pumps, as above, be very careful. It's a minefield. Unusually the different revisions (EG 03L 130 755, 03L 130 755 A, 03L 130 755 F) are not necessarily bolt on replacements. They'll fit but may be made for a different fuel system. On the contrary, the Bosch internal part numbers may be interchangeable between different model #s too. Best bet is to find one with identical markings, both VW part number, bosch part number, and flow rates (eg R35/20 which I believe is what this represents).

Tuesday	16	April	2024	14:01:27:01454-VCID:3B233CC303E5FA323A1-806E	VCDS Version: Release 23.11.0 (x64)	Data version: 20231027 DS351.0
03L 997 009 J	ADVMB	R4 2.0l TDI H23 9982
		G025	F0	G031	F0	G000

Marker	TIME	Loc. IDE00188	TIME	Loc. IDE00201
	STAMP	Fuel high-pressure: actual value	STAMP	High fuel pressure: specified value
		hPa		hPa
	0.08	327100	0.13	325500
	0.18	327100	0.23	325500
	0.33	327100	0.38	325500
	0.44	324600	0.49	325400
	0.58	327100	0.63	325400
	0.68	327100	0.74	325600
	0.83	324600	0.88	325600
	0.94	324600	0.99	325600
	1.08	327100	1.15	325500
	1.24	327100	1.31	325400
	1.39	322200	1.45	325300
	1.54	324600	1.59	325300
	1.65	324600	1.7	325300
	1.8	324600	1.86	325300
	1.96	327100	2.03	325400
	2.11	327100	2.18	325500
	2.27	324600	2.33	325500
	2.43	324600	2.49	325600
	2.59	327100	2.65	325500
	2.74	329500	2.79	325500
	2.88	324600	2.94	325500
	3.03	324600	3.08	325500
	3.14	324600	3.19	325400
	3.27	324600	3.32	325300
	3.41	322200	3.46	325400
	3.52	324600	3.57	325400
	3.65	324600	3.71	325300
	3.77	327100	3.82	325200
	3.91	324600	3.97	325300
	4.05	324600	4.1	325400
	4.19	324600	4.26	325400
	4.35	327100	4.41	325300
	4.51	327100	4.57	325400
	4.66	322200	4.72	325500
	4.82	327100	4.88	325400
	4.98	327100	5.03	325400
	5.12	324600	5.18	325500
	5.24	324600	5.3	325600
	5.37	327100	5.43	325500
	5.49	327100	5.56	325400
	5.62	324600	5.68	325500
	5.74	322200	5.81	325500
	5.87	327100	5.93	325500
	6	324600	6.06	325500
	6.11	327100	6.18	325400
	6.24	324600	6.3	325400
	6.36	324600	6.39	325600
	6.44	322200	6.5	325500
	6.58	324600	6.63	325300
	6.72	322200	6.77	325400
	6.83	322200	6.87	325400
	6.97	324600	7.02	325400
	7.08	324600	7.12	325400
	7.22	327100	7.27	325500
	7.32	324600	7.38	325400
	7.47	324600	7.51	325300
	7.58	324600	7.63	325300
	7.72	324600	7.79	325400
	7.87	329500	7.93	325400
	7.99	329500	8.04	325600
	8.12	324600	8.18	325600
	8.24	327100	8.3	325600
	8.37	327100	8.42	325600
	8.49	324600	8.55	325600
	8.6	324600	8.66	325600
	8.74	327100	8.8	325400
	8.85	324600	8.91	325400
	9	324600	9.05	325500
	9.11	327100	9.16	325500
	9.26	324600	9.31	325400
	9.41	327100	9.46	325400
	9.52	327100	9.56	325300
	9.67	327100	9.72	325400
	9.81	324600	9.87	325500
	9.97	324600	10.04	325400
	10.14	327100	10.2	325400
	10.3	327100	10.34	325400
	10.41	324600	10.47	325400
	10.55	327100	10.59	325500
	10.67	324600	10.72	325400
	10.8	327100	10.85	325200
	10.91	327100	10.94	325300
	11	324600	11.05	325300
	11.14	327100	11.19	325400
	11.27	327100	11.32	325500
	11.41	327100	11.47	325600
	11.54	327100	11.6	325700
	11.66	327100	11.71	325800
	11.79	327100	11.85	325800
	11.91	327100	11.95	325800
	12.05	327100	12.1	325900
	12.16	327100	12.21	325900
	12.31	327100	12.37	325900
	12.46	324600	12.53	325800
	12.61	324600	12.67	325800
	12.77	327100	12.84	325900
	12.93	329500	12.99	325900
	13.09	327100	13.15	325800
	13.24	322200	13.3	326000
	13.4	327100	13.45	326000
	13.53	327100	13.57	326000
	13.66	324600	13.7	325900
	13.75	324600	13.8	325900
	13.89	324600	13.94	325800
	14	324600	14.05	325800
	14.14	324600	14.19	325800
	14.25	327100	14.3	325900
	14.4	324600	14.46	325900
	14.55	329500	14.6	326000
	14.66	327100	14.71	326000
	14.79	329500	14.85	326100
	14.91	327100	14.95	326100
	15.04	329500	15.09	326100
	15.16	329500	15.23	326000
	15.29	324600	15.35	325900
	15.41	327100	15.46	325800
	15.56	327100	15.62	325900
	15.7	324600	15.78	326000
	15.87	324600	15.92	326000
	16.02	324600	16.09	326000
	16.17	327100	16.25	326000
	16.34	327100	16.4	326000
	16.48	327100	16.52	326000
	16.6	324600	16.65	326100
	16.73	327100	16.78	326000
	16.86	324600	16.9	326100
	16.96	327100	17.01	326100
	17.1	324600	17.15	326100
	17.24	324600	17.29	326000
	17.38	322200	17.44	326100
	17.52	327100	17.59	326200
	17.68	327100	17.74	326300
	17.84	324600	17.9	326300
	17.98	324600	18.06	326200
	18.15	324600	18.21	326200
	18.3	327100	18.37	326100
	18.47	331900	18.51	326200
	18.56	327100	18.61	326300
	18.68	324600	18.72	326400
	18.78	324600	18.83	326300
	18.91	324600	18.95	326100
	19.04	327100	19.08	326100
	19.17	327100	19.21	326100
	19.3	327100	19.33	326100
	19.42	327100	19.47	326100
	19.54	327100	19.59	326100
	19.66	327100	19.72	326300
	19.8	324600	19.84	326200
	19.9	324600	19.95	326200
	20.05	327100	20.1	326300
	20.15	324600	20.21	326300
	20.3	324600	20.35	326200
	20.41	324600	20.46	326200
	20.55	324600	20.59	326200
	20.66	324600	20.71	326300
	20.8	327100	20.85	326300
	20.92	327100	20.98	326300
	21.04	324600	21.11	326300
	21.17	327100	21.22	326300
	21.3	324600	21.33	326300
	21.42	327100	21.47	326300
	21.53	324600	21.58	326300
	21.66	327100	21.7	326200
	21.75	322200	21.8	326200
	21.88	324600	21.94	326300
	22	324600	22.05	326200
	22.14	324600	22.18	326100
	22.27	327100	22.33	326100
	22.38	324600	22.43	326000
	22.52	324600	22.58	326100
	22.63	324600	22.69	326200
	22.77	324600	22.83	326000
	22.93	327100	22.98	326100
	23.09	327100	23.15	326300
	23.24	327100	23.31	326400
	23.4	324600	23.45	326300
	23.56	327100	23.62	326200
	23.72	331900	23.77	326300
	23.83	327100	23.9	326400
	23.96	327100	24.02	326400
	24.08	327100	24.13	326400
	24.22	327100	24.26	326200
	24.33	327100	24.37	326000
	24.47	327100	24.52	326100
	24.58	327100	24.63	326000
	24.73	327100	24.79	326200
	24.88	327100	24.94	326300
	25.03	324600	25.1	326200
	25.19	327100	25.26	326100
	25.36	327100	25.42	326100
	25.51	327100	25.57	326200
	25.66	327100	25.72	326200
	25.77	327100	25.84	326100
	25.9	324600	25.95	326300
	26.04	324600	26.09	326400
	26.19	324600	26.23	326200
	26.29	324600	26.36	326200
	26.41	324600	26.46	326100
	26.55	327100	26.59	326300
	26.66	327100	26.71	326300
	26.8	324600	26.85	326400
	26.94	324600	26.99	326400
	27.05	324600	27.1	326400
	27.18	327100	27.24	326300
	27.3	324600	27.35	326300
	27.44	324600	27.49	326200
	27.55	324600	27.6	326200
	27.69	324600	27.73	326200
	27.8	327100	27.85	326200
	27.94	324600	27.99	326400
	28.04	324600	28.1	326400
	28.19	327100	28.26	326300
	28.34	327100	28.41	326300
	28.51	327100	28.57	326300
	28.66	327100	28.73	326100
	28.82	327100	28.88	326100
	28.98	324600	29.04	326100
	29.13	327100	29.19	326200
	29.29	324600	29.35	326200
	29.45	324600	29.51	326200
	29.59	327100	29.65	326300
	29.7	324600	29.78	326300
	29.83	324600	29.9	326300
	29.96	327100	30.03	326300
	30.09	324600	30.15	326400
	30.21	324600	30.26	326200
	30.31	322200	30.35	326200
	30.43	327100	30.48	326200
	30.58	324600	30.63	326200
	30.68	324600	30.73	326300
	30.83	327100	30.88	326400
	30.94	327100	30.99	326400
	31.08	324600	31.13	326300
	31.19	324600	31.24	326200
	31.33	324600	31.37	326300
	31.44	324600	31.49	326400
	31.57	324600	31.62	326300
	31.68	324600	31.74	326200
	31.84	324600	31.89	326100
	31.98	324600	32.05	326200
	32.15	327100	32.21	326400
	32.31	327100	32.36	326300
	32.46	324600	32.53	326300
	32.61	327100	32.67	326300
	32.76	324600	32.81	326400
	32.9	329500	32.97	326300
	33.06	327100	33.11	326400
	33.19	324600	33.24	326400
	33.31	327100	33.36	326400
	33.45	324600	33.49	326400
	33.58	324600	33.62	326300
	33.7	322200	33.75	326400
	33.83	327100	33.87	326400
	33.96	324600	34.01	326400
	34.11	322200	34.16	326400
	34.22	324600	34.27	326300
	34.36	324600	34.41	326200
	34.48	327100	34.53	326200
	34.6	327100	34.66	326300
	34.72	322200	34.77	326200
	34.87	324600	34.93	326200
	35.03	327100	35.09	326300
	35.17	327100	35.22	326400
	35.31	327100	35.36	326400
	35.42	327100	35.47	326300
	35.55	327100	35.59	326300
	35.67	329500	35.72	326400
	35.8	327100	35.84	326400
	35.92	324600	35.97	326500
	36.05	329500	36.08	326400
	36.17	327100	36.22	326300
	36.29	327100	36.34	326200
	36.41	329500	36.44	326300
	36.5	324600	36.55	326300
	36.64	327100	36.69	326400
	36.75	324600	36.8	326400
	36.9	324600	36.96	326400
	37.05	327100	37.1	326200
	37.16	327100	37.21	326200
	37.3	327100	37.35	326400
	37.41	327100	37.48	326400
	37.54	327100	37.6	326300
	37.67	327100	37.73	326200
	37.79	329500	37.86	326100
	37.92	329500	37.97	326200
	38.04	327100	38.11	326300
	38.2	327100	38.25	326300
	38.33	327100	38.36	326400
	38.41	327100	38.47	326400
	38.54	327100	38.59	326400
	38.69	327100	38.74	326400
	38.8	327100	38.86	326300
	38.94	327100	38.99	326300
	39.05	324600	39.1	326300
	39.19	327100	39.24	326300
	39.3	331900	39.35	326200
	39.44	327100	39.49	326400
	39.56	329500	39.62	326400
	39.68	327100	39.74	326400
	39.81	327100	39.87	326400
	39.93	327100	40	326300
	40.06	327100	40.12	326300
	40.18	327100	40.25	326200
	40.31	327100	40.37	326400
	40.44	327100	40.49	326400
	40.58	327100	40.62	326300
	40.72	327100	40.76	326200
	40.83	329500	40.87	326300
	40.96	324600	41.01	326300
	41.09	329500	41.15	326200
	41.26	327100	41.32	326200
	41.41	324600	41.48	326400
	41.57	327100	41.64	326200
	41.73	327100	41.79	326200
	41.87	322200	41.93	326300
	42	327100	42.06	326300
	42.12	327100	42.16	326300
	42.23	327100	42.28	326400
	42.36	327100	42.4	326300
	42.47	327100	42.53	326300
	42.61	327100	42.66	326300
	42.72	327100	42.77	326200
	42.85	327100	42.91	326200
	42.97	327100	43.02	326200
	43.1	327100	43.16	326200
	43.21	327100	43.27	326300
	43.36	327100	43.42	326400
	43.52	324600	43.59	326400
	43.68	324600	43.73	326400
	43.82	327100	43.89	326300
	43.94	327100	44	326300
	44.09	327100	44.14	326300
	44.19	327100	44.25	326300
	44.32	327100	44.36	326300
	44.45	327100	44.5	326100
	44.57	329500	44.63	326200
	44.69	324600	44.73	326300
	44.83	329500	44.88	326400
	44.94	327100	44.99	326400
	45.07	327100	45.12	326400
	45.21	324600	45.27	326400
	45.35	329500	45.41	326500

Fuel Rail Pressure Too Low-Tested Injectors

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