A3 L4-2.0L Turbo (BPY) (2006)
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Camshaft: Customer Interest
Fuel System - MIL ON/DTC P2293/P0087/P1093
15 07 02
June 18, 2007
2013147/4
Supersedes Technical Service Bulletin Group 21 number 06-04 dated Dec. 11, 2006 due to addition of description of one of the main conditions that can
result in the storage of P2293.
MIL On (DTC P2293 In ECM)
Models
Condition
MIL on. The following DTC is stored in the ECM data memory:
^
P2293 (Fuel pressure regulator 2 performance)
at times in combination with:
^
P0087 (Rail fuel pressure too low)
^
P1093 (Fuel trim 2, bank 1 malfunction)
Technical Background
Excessive wear of the cam lobe (in the intake camshaft) that drives the high pressure fuel pump. This limits the maximum pump piston lift, causing fuel
rail pressure fluctuations. The wear on the cam lobe also leads to wear in the base of the high pressure fuel pump cam follower.
Production Solution
Increased surface hardening of the camshaft lobe for the high pressure fuel pump.
Improved intake camshafts have part number 06F 109 101 B.
Service
1.
Remove the high pressure fuel pump and visually inspect:
