Utilisation du VCDS pour pression d'essence

[La Menace]

Qui pourrait me donner la procédure à suivre pour faire baisser la pression de carburant sur un moteur BPJ  TFSI via le VCDS  car je dois démonter mes détecteurs de cliquetis et j'en ai aucune idée 

 

Merci

[WAUZZZ]

Salut,

Abaisser la pression... je ne sais pas.

En revanche, on peut manifestement la contrôler (1ère procédure) ou l'adapter (2ème procédure) Infos issues du Wiki Ross Tech :

http://wiki.ross-tech.com/wiki/index.php/2.0l_TFSI_(AXX/BGB/BPJ/BPY/BWA)#Adaptation

1ère procédure : Checking Fuel Pressure

Prerequisites:

• Ignition ON
• Engine ON (Idle)
• System voltage at least 11.0 V.
• Coolant Temperature at least 80 °C
   

[Select]
[01 - Engine]
[Meas. Blocks - 08]
Group 103
[Go!]
Field 1: Fuel Pressure (Low), Specification: 2800...7200 mbar
Field 2: Fuel Pump Adaptation, Specification: -1000...+1000 %
Note:

• Timing chain driven engines such as the CCTA, CBFA and CCTA were phased in during model year 2008. Those engines do not use a G410 (Low) Fuel Pressure Sensor so Measuring Blocks group 103 is not applicable.

Group 106
[Go!]
Field 2: Fuel Rail,Pressure (actual): (A value ≈ 35 to 55% is considered normal at idle)

• A value ≈ 55% to 60% could be considered as an indication of a low fuel pressure concern
• A value above ≈ 60% to 70% usually indicates there is a failure or restriction
• A value fluctuating ≈ 35% to 95% may indicate an intake fuel pump failing
  • Causes of low pressure can include:
    • Damaged/restricted fuel lines
    • Fuel filter issues including restricted/clogged or incorrect part number (wrong pressure relief value)
    • Faulty in-tank fuel pump and/or in-tank fuel pump controller. (With critical parts, we encourage customers to use Genuine Factory parts from the dealer's parts department.).

Group 140
[Go!]
Field 3: Fuel Rail Pressure (High), Specification: 25.0...110.0 bar
Increase the Engine Speed while checking this value, the Pressure has to rise with the Engine Speed.

Group 230
[Go!]
Field 1: Specified Fuel Rail Pressure (High)
Field 2: Actual Fuel Rail Pressure (High), Specification: 25.0...110.0 bar
Field 3: Deviation between specified and actual fuel pressure, Specification: max. 5.0 bar

• This video may be helpful:

http://www.youtube.com/watch?v=jThQVzYFbVo

[Done, Go Back]
[Close Controller, Go Back - 06]

 

 

2ème procédure (réglage de base de la pompe carburant)

 

Fuel Pump

Prerequisites:

• Ignition ON
• Engine ON
• System voltage at least 11.0 V.
   

[Select]
[01 - Engine]
[Basic Settings - 04]
Group 103
[Go!]
Activate the Basic Setting.
[ON/OFF/Next]
Wait until Field 4 shows "ADP. O.K.".
[Done, Go Back]
[Close Controller, Go Back - 06]

• Switch Ignition OFF.
• @+