Passat Sedan V6-3.6L (BLV) (2008)
Fuel Pressure Sensor: All Technical Service Bulletins
Fuel System - MIL ON/DTC' P129F/P310B Set
01 10 10
June 7, 2010
2016182 Supersedes T.B. Group 01 number 07-69 dated Dec.13, 2007 due to updated thrust sensor part number for the 2.0L T (BPY) engine.
MIL ON, DTC P129F and or P310B Stored in ECM Fault Memory
Due to fuel intrusion into the Low Pressure Side Fuel Pressure Sensor -G410-, a false signal may be sent to the ECM resulting in a reading that is out of
tolerance. A false signal may result in illumination of the malfunction indicator lamp (MIL) and DTC P129F or DTC P310B being stored in fault
Improved fuel pressure sensor -G410- to aid against fuel intrusion.
DO NOT replace fuel system components for DTCs listed above before completing this technical bulletin.
For 2.0T (BPY) and 3.6L (B LV, BHK) FSI engines:
1. Check to ensure:
DTC P129F and/or P310B are stored in DTC memory.
No other fuel delivery system DTCs that clearly indicate a component failure (DTCs for fuel delivery system component electrical faults) are
2. Start engine and allow it to idle.
3. Disconnect fuel metering valve connector -N276- on high pressure fuel pump.
4. Compare fuel pressure values from MVB 103 field 1 and MVB 106 field 1.
5. If MVB 103 value deviates more than i 0.5 bar (7.25 psi) from MVB 106 measurement, then DTC was likely triggered by a faulty -G410- Low Side
Fuel Pressure Sensor. In this case, replace -G410- low-side fuel pressure sensor. See Repair Manual Group 24 Multiport Fuel Injection (MFI) in
a. Clear DTCs and verify concern is resolved.
b. Run Basic Settings 103 to adapt system.