Falta de potencia y temblor en arranque en frío 2.0TFSI
Buenas compañeros.
Llevo años con el coche que intermitentemente me arroja según que errores relacionados con la inyección/admisión. Se trata de un Exeo con motor BWE.
A la vez me genera una pérdida de potencia y en el arranque en frío parece que le cuesta un pelín arrancar, aunque lo hace bien.
La cosa es que a lo largo de estos años me ha aparecido el mismo error dos o tres veces relacionado con la admisión supongo "System too Lean Bank 1" P0171
A partir de ahí intenté buscar alguna fuga de vacío por los tubos que creí afectados (manguitos de intercooler, admisión, cuerpo aceleración, N75...etc) pero al tacto y a la vista no observé nada anómalo.
La cosa es que el coche tenía una mala leche increible y le pesan las pelotas desde hace mucho, no va bien, no sé si está en limp mode permanente o qué, pero antes de tener el Vag Com en la app de movil "Torque" no salían errores ni nada, salvo la vez anterior en la que hablo del P0171.
El caso es que hace unas semanas estando de viaje y en plena aceleración en 3ª, el coche pegó un taponazo por el tubo de escape y a continuación se ahogaba, parecía un corte de encendido y comenzó a parpadear la luz amarilla del motor, hasta que a los segundos de levantar el pie del acelerador la luz se apagó y el motor recobró su potencia habitual por lo que pudimos continuar el viaje, no sin incertidumbre y a ritmo tranquilo.
Yendo en marcha escanee con la citada app errores y me mostró los siguientes:
P0268 Tren Motriz, Cylinder 3 Injector Circuit High
P0300 Tren Motriz, Random/Multiple Cylinder Misfire Detected
P0301 Tren Motriz, Cylinder 1 Misfire Detected
P0304 Tren Motriz, Cylinder 4 Misfire Detected
Leyendo sobre la marcha con la app Torque, el turbo soplaba con un pico de 0.8bar y estabilizaba en seguida a 0.45bar cuando el coche andaba bien, y ahora me sopla sobre los 0.2bar, 0.4, depende por donde le de, incluso a 0.1.
Por otra parte advertir que en la misma app me marca la mezcla estequiométrica a 15,3 a ralentí, es decir, bastante pobre, y en plena carga se ve de todo, pero nunca constante algo cercano a 14,7.
Una vez conseguido el vag com he aprendido a hacer un log (o creo que lo he hecho) y me aparece lo siguiente.
Está realizado en 3ª con el motor a casi 90º (de marcador, no de vag com, supongo que serán menos), unos 14º de temperatura exterior y está hecho en una ciudad costera y en llano. He visto algo raro a 2.600 rpm en cuanto a la carga del motor, no me explico eso, pero no sé interpretarlo.
Decir que es la primera vez que veo leer al caudalímetro más de 75g/s a plena carga.
Espero que podais ayudarme porque esto me trae de cabeza.
Group A: |
'003 |
|
|
|
Group B: |
'115 |
|
|
|
|
RPM |
Mass Flow |
Load |
Ign. Timing |
|
RPM |
Load |
Absolute Pres. |
Pressure |
TIME |
|
|
|
|
TIME |
|
|
|
|
STAMP |
/min |
g/s |
% |
°BTDC |
STAMP |
/min |
% |
mbar |
mbar |
0.19 |
1520 |
4.58 |
3.5 |
-8.3 |
0.06 |
1560 |
13.5 |
250.0 |
1020.0 |
0.44 |
1520 |
4.44 |
3.5 |
-9.0 |
0.31 |
1520 |
13.5 |
250.0 |
1020.0 |
0.70 |
1520 |
4.39 |
3.5 |
-4.5 |
0.58 |
1520 |
13.5 |
250.0 |
1020.0 |
0.95 |
1520 |
10.56 |
20.4 |
15.8 |
0.83 |
1480 |
15.8 |
390.0 |
1020.0 |
1.22 |
1480 |
24.00 |
84.7 |
5.3 |
1.10 |
1600 |
73.7 |
1550.0 |
1000.0 |
1.47 |
1600 |
27.44 |
88.6 |
8.3 |
1.34 |
1560 |
72.9 |
1540.0 |
1040.0 |
1.73 |
1600 |
28.83 |
91.0 |
8.3 |
1.61 |
1600 |
74.4 |
1540.0 |
1090.0 |
1.98 |
1680 |
30.19 |
94.5 |
8.3 |
1.86 |
1680 |
76.7 |
1610.0 |
1140.0 |
2.25 |
1720 |
32.58 |
97.3 |
7.5 |
2.12 |
1680 |
79.7 |
1630.0 |
1190.0 |
2.50 |
1800 |
33.89 |
99.2 |
8.3 |
2.37 |
1760 |
82.7 |
1680.0 |
1230.0 |
2.76 |
1840 |
36.42 |
99.6 |
7.5 |
2.64 |
1800 |
85.7 |
1720.0 |
1270.0 |
3.01 |
1880 |
38.69 |
99.6 |
7.5 |
2.89 |
1880 |
88.0 |
1730.0 |
1310.0 |
3.28 |
1960 |
41.89 |
99.6 |
6.8 |
3.15 |
1920 |
90.2 |
1740.0 |
1350.0 |
3.53 |
2040 |
44.00 |
99.6 |
6.8 |
3.40 |
2000 |
94.7 |
1740.0 |
1400.0 |
3.79 |
2120 |
48.28 |
99.6 |
6.0 |
3.67 |
2080 |
97.7 |
1720.0 |
1450.0 |
4.04 |
2160 |
51.94 |
98.4 |
5.3 |
3.92 |
2160 |
103.0 |
1710.0 |
1500.0 |
4.31 |
2280 |
58.56 |
97.3 |
3.8 |
4.19 |
2200 |
109.0 |
1690.0 |
1570.0 |
4.56 |
2360 |
64.97 |
96.1 |
0.0 |
4.43 |
2320 |
116.5 |
1680.0 |
1640.0 |
4.83 |
2440 |
69.58 |
96.1 |
0.0 |
4.70 |
2400 |
126.3 |
1650.0 |
1730.0 |
5.08 |
2520 |
67.86 |
95.3 |
6.0 |
4.95 |
2480 |
128.6 |
1630.0 |
1750.0 |
5.34 |
2600 |
63.89 |
68.6 |
9.8 |
5.22 |
2560 |
124.1 |
1580.0 |
1710.0 |
5.59 |
2680 |
73.17 |
95.3 |
6.0 |
5.47 |
2640 |
124.8 |
1580.0 |
1620.0 |
5.86 |
2800 |
74.47 |
98.0 |
6.0 |
5.73 |
2760 |
126.3 |
1580.0 |
1630.0 |
6.11 |
2880 |
73.25 |
98.0 |
7.5 |
5.98 |
2840 |
124.1 |
1570.0 |
1610.0 |
6.37 |
2960 |
76.39 |
97.6 |
11.3 |
6.25 |
2920 |
121.1 |
1570.0 |
1590.0 |
6.62 |
3040 |
77.97 |
97.6 |
9.0 |
6.50 |
3000 |
120.3 |
1570.0 |
1590.0 |
6.89 |
3120 |
80.72 |
97.6 |
9.8 |
6.76 |
3080 |
120.3 |
1580.0 |
1580.0 |
7.14 |
3200 |
82.03 |
97.6 |
13.5 |
7.01 |
3160 |
120.3 |
1580.0 |
1580.0 |
7.40 |
3280 |
82.94 |
97.3 |
13.5 |
7.28 |
3240 |
119.5 |
1580.0 |
1570.0 |
7.65 |
3400 |
86.92 |
96.9 |
14.3 |
7.53 |
3320 |
118.8 |
1580.0 |
1580.0 |
7.92 |
3480 |
87.50 |
96.9 |
12.8 |
7.80 |
3440 |
118.0 |
1590.0 |
1580.0 |
8.17 |
3560 |
89.11 |
96.1 |
15.8 |
8.04 |
3520 |
117.3 |
1590.0 |
1570.0 |
8.44 |
3640 |
90.64 |
96.1 |
15.8 |
8.31 |
3600 |
116.5 |
1600.0 |
1570.0 |
8.68 |
3720 |
95.89 |
95.7 |
13.5 |
8.56 |
3680 |
118.0 |
1600.0 |
1570.0 |
8.95 |
3800 |
97.89 |
95.7 |
15.8 |
8.83 |
3760 |
118.0 |
1610.0 |
1590.0 |
9.20 |
3880 |
100.42 |
95.3 |
13.5 |
9.08 |
3840 |
119.5 |
1620.0 |
1610.0 |
9.47 |
4000 |
102.14 |
95.3 |
15.8 |
9.34 |
3920 |
121.8 |
1620.0 |
1610.0 |
9.72 |
4080 |
106.53 |
95.7 |
13.5 |
9.59 |
4040 |
121.8 |
1630.0 |
1620.0 |
9.98 |
4160 |
109.11 |
94.9 |
13.5 |
9.86 |
4120 |
120.3 |
1630.0 |
1630.0 |
10.23 |
4240 |
109.28 |
94.9 |
13.5 |
10.11 |
4200 |
121.8 |
1640.0 |
1630.0 |
10.50 |
4320 |
112.81 |
94.1 |
13.5 |
10.37 |
4280 |
121.8 |
1640.0 |
1640.0 |
10.75 |
4400 |
115.81 |
94.5 |
14.3 |
10.62 |
4360 |
121.1 |
1650.0 |
1640.0 |
11.01 |
4480 |
118.89 |
94.5 |
15.8 |
10.89 |
4480 |
121.8 |
1650.0 |
1640.0 |
11.26 |
4600 |
118.47 |
94.9 |
15.0 |
11.14 |
4560 |
122.6 |
1650.0 |
1640.0 |
11.53 |
4680 |
123.36 |
94.9 |
17.3 |
11.40 |
4640 |
122.6 |
1650.0 |
1630.0 |
11.78 |
4760 |
127.28 |
94.9 |
15.8 |
11.66 |
4720 |
123.3 |
1650.0 |
1640.0 |
12.05 |
4840 |
130.31 |
94.9 |
16.5 |
11.92 |
4800 |
126.3 |
1650.0 |
1640.0 |
12.29 |
4920 |
133.42 |
95.3 |
16.5 |
12.17 |
4880 |
125.6 |
1650.0 |
1640.0 |
12.56 |
5000 |
134.75 |
94.9 |
17.3 |
12.44 |
4960 |
126.3 |
1640.0 |
1630.0 |
12.81 |
5080 |
136.67 |
94.5 |
18.0 |
12.69 |
5040 |
126.3 |
1630.0 |
1630.0 |
13.08 |
5160 |
140.22 |
93.7 |
15.0 |
12.96 |
5120 |
126.3 |
1600.0 |
1630.0 |
13.33 |
5240 |
138.00 |
94.1 |
18.0 |
13.20 |
5200 |
126.3 |
1570.0 |
1610.0 |
13.59 |
5320 |
139.50 |
93.7 |
18.8 |
13.47 |
5280 |
125.6 |
1550.0 |
1590.0 |
13.84 |
5400 |
140.72 |
92.5 |
16.5 |
13.72 |
5360 |
121.1 |
1530.0 |
1560.0 |
14.11 |
5480 |
139.69 |
91.8 |
17.3 |
13.99 |
5440 |
120.3 |
1500.0 |
1550.0 |
14.36 |
5560 |
136.42 |
91.4 |
16.5 |
14.23 |
5520 |
120.3 |
1480.0 |
1520.0 |
14.62 |
5600 |
135.36 |
91.4 |
19.5 |
14.50 |
5560 |
115.8 |
1470.0 |
1490.0 |
14.88 |
5680 |
136.25 |
91.0 |
19.5 |
14.75 |
5640 |
113.5 |
1450.0 |
1450.0 |
15.14 |
5760 |
137.86 |
91.4 |
21.0 |
15.01 |
5720 |
112.8 |
1440.0 |
1440.0 |
15.39 |
5840 |
138.94 |
91.4 |
21.0 |
15.26 |
5760 |
112.8 |
1420.0 |
1430.0 |
15.65 |
5880 |
139.78 |
90.6 |
18.8 |
15.53 |
5840 |
112.0 |
1400.0 |
1430.0 |
15.90 |
5960 |
144.17 |
90.2 |
18.0 |
15.78 |
5920 |
112.8 |
1380.0 |
1420.0 |
16.18 |
6000 |
142.50 |
90.2 |
19.5 |
16.04 |
5960 |
111.3 |
1360.0 |
1410.0 |
16.42 |
6080 |
140.53 |
90.6 |
18.8 |
16.29 |
6040 |
109.8 |
1350.0 |
1390.0 |
16.68 |
6120 |
139.28 |
91.4 |
18.8 |
16.56 |
6080 |
108.3 |
1350.0 |
1370.0 |
16.94 |
6200 |
144.92 |
91.8 |
18.8 |
16.81 |
6160 |
106.8 |
1350.0 |
1350.0 |
17.20 |
6240 |
143.81 |
92.2 |
18.8 |
17.08 |
6200 |
106.8 |
1350.0 |
1340.0 |
17.45 |
6280 |
143.11 |
92.2 |
21.8 |
17.33 |
6240 |
106.8 |
1340.0 |
1340.0 |
17.72 |
6360 |
145.94 |
91.8 |
18.8 |
17.59 |
6320 |
107.5 |
1340.0 |
1350.0 |
17.96 |
6400 |
147.89 |
91.8 |
18.8 |
17.84 |
6360 |
107.5 |
1330.0 |
1350.0 |
18.23 |
6440 |
148.17 |
92.9 |
21.8 |
18.11 |
6440 |
106.0 |
1330.0 |
1340.0 |
18.48 |
6520 |
147.97 |
93.3 |
19.5 |
18.36 |
6480 |
106.8 |
1320.0 |
1320.0 |
18.75 |
6560 |
148.83 |
93.3 |
19.5 |
18.62 |
6520 |
106.0 |
1310.0 |
1320.0 |
19.00 |
6600 |
149.94 |
94.1 |
21.0 |
18.87 |
6560 |
106.0 |
1310.0 |
1310.0 |
19.27 |
6640 |
149.56 |
93.3 |
19.5 |
19.15 |
6640 |
105.3 |
1270.0 |
1310.0 |
19.51 |
6680 |
145.44 |
92.2 |
22.5 |
19.39 |
6640 |
104.5 |
1240.0 |
1300.0 |
19.79 |
6720 |
141.42 |
93.3 |
21.0 |
19.66 |
6720 |
100.8 |
1180.0 |
1250.0 |
20.04 |
6760 |
139.92 |
91.0 |
19.5 |
19.91 |
6760 |
98.5 |
1150.0 |
1230.0 |
20.30 |
6800 |
128.17 |
43.1 |
21.8 |
20.17 |
6800 |
97.7 |
1090.0 |
1260.0 |
20.55 |
6840 |
122.67 |
39.6 |
19.5 |
20.42 |
6800 |
87.2 |
1070.0 |
1300.0 |
20.81 |
6840 |
114.47 |
35.7 |
16.5 |
20.69 |
6840 |
80.5 |
970.0 |
1300.0 |
21.06 |
6840 |
98.14 |
29.8 |
22.5 |
20.94 |
6840 |
68.4 |
790.0 |
1350.0 |
21.33 |
6840 |
75.92 |
27.1 |
24.0 |
21.20 |
6800 |
54.9 |
730.0 |
1380.0 |
21.58 |
6840 |
76.06 |
27.1 |
21.0 |
21.45 |
6880 |
50.4 |
560.0 |
1180.0 |
21.84 |
6840 |
60.17 |
23.5 |
36.0 |
21.72 |
6840 |
43.6 |
480.0 |
1200.0 |
22.09 |
6800 |
50.56 |
21.2 |
35.3 |
21.97 |
6800 |
33.8 |
490.0 |
1230.0 |
22.36 |
6840 |
50.11 |
20.0 |
27.0 |
22.24 |
6800 |
29.3 |
400.0 |
1240.0 |
22.61 |
6760 |
47.78 |
20.8 |
36.0 |
22.48 |
6800 |
27.8 |
410.0 |
1210.0 |
22.87 |
6800 |
53.03 |
20.4 |
33.8 |
22.75 |
6760 |
30.1 |
400.0 |
1260.0 |
23.12 |
6760 |
53.28 |
22.7 |
34.5 |
23.00 |
6760 |
35.3 |
450.0 |
1210.0 |
23.39 |
6760 |
57.17 |
22.0 |
34.5 |
23.27 |
6760 |
33.1 |
510.0 |
1240.0 |
23.64 |
6760 |
68.03 |
25.9 |
29.3 |
23.52 |
6760 |
39.1 |
480.0 |
1230.0 |
23.91 |
6760 |
71.06 |
24.3 |
19.5 |
23.78 |
6760 |
47.4 |
580.0 |
1370.0 |
24.16 |
6760 |
77.86 |
25.9 |
21.0 |
24.03 |
6760 |
50.4 |
590.0 |
1350.0 |
24.42 |
6760 |
78.42 |
26.7 |
24.0 |
24.30 |
6760 |
52.6 |
630.0 |
1340.0 |
24.67 |
6760 |
81.44 |
26.7 |
24.8 |
24.55 |
6760 |
54.9 |
640.0 |
1340.0 |
Gracias y un saludo, espero vuestras opiniones.