Eos (1F7) L4-2.0L Turbo (BPY) (2007)
Lifter / Lash Adjuster: Customer Interest
Engine/Fuel - MIL ON/DTC's DTC P0087/P1093/P2293
15 09 02
November 10, 2009
2015153 Supersedes T.B. Group 15 number 09-01 dated March 12, 2009 to include an oil and oil filter change in the procedure and update vendor code.
Vehicle Information
Condition
MIL ON, DTC P0087, P1093 or P2293 Stored in ECM Fault Memory
MIL ON with the following DTCs may be stored in ECM fault memory:
Technical Background
Excessive wear of intake camshaft lobe that drives the high pressure fuel pump. The wear limits maximum pump piston lift, causing fuel rail pressure
fluctuations.
The wear on the camshaft lobe can also lead to wear on the base of the high pressure fuel pump cam follower.
Note:
Please review with customer the importance of using proper engine oil. Use of engine oil that does not meet VW quality standards can cause
premature wear to engine components. Refer to Technical Bulletin Instance 2012855 Engine Oils Which Meet Volkswagen Oil Quality Standards
VW 502 00, VW 505 01 and VW 504 00/507 00.
Production Solution
Increase surface hardening of camshaft lobe for the high pressure fuel pump. Improved intake camshafts have Part No. 06F109101B.
Service
If there are low pressure faults stored in the ECM like P310b or P129f, always diagnose low pressure faults first before diagnosing high pressure faults.
Note:
DO NOT REPLACE high pressure pump for low pressure faults.