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Old 11-30-2015, 11:49 AM   #1
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Default problème seat ibiza 1.9tdi

Bonjour;
j'ai un problème qui persiste sur une seat ibiza 1.69tdi, moteur en régime dégradé avec témoin de préchauffage allumé, le code de défaut lu par VCDS est : P0651 Tension de référence du capteur B - coupure.
qulq1 a une idée. Merci.
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Old 11-30-2015, 11:52 AM   #2
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Vaut aussi pour le P0651 : (source: rosstech)
http://wiki.ross-tech.com/wiki/index...6/P0652/001618

Possible Causes
* Wiring/Connectors from/to Intake Manifold Pressure Sensor (G31) faulty
* Intake Manifold Pressure Sensor (G31) faulty
* Engine Control Module faulty

Possible Solutions
* Check Wiring/Connectors from/to Intake Manifold Pressure Sensor (G31)
* Check/Replace Intake Manifold Pressure Sensor (G31)
* Replace Engine Control Module

When found in 1.9l TDI (BEW):
* Check Atmospheric Pressure (MVB 010.2) and Intake Manifold Pressure Sensor (MVB 010.3). Compare both Values with Engine OFF, the Tolerance should be +/- 50 mbar.
* Check Variable Nozzle Turbocharger (VNT). Specifically, check the electronic actuator position sensor G500 , including unplugging it for testing.
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Old 11-30-2015, 12:05 PM   #3
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Salut
au hasard la sonde de la clim qui fou la merde ?
Debranche la et voit ce que cela donne .
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Old 12-01-2015, 11:44 AM   #4
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Salut;
problème résolu c'était un fil de 5v qui était en court-circuit avec la masse.(défaut de câblage).
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