Affected vehicles:
2004-’05 Forester XT 2.5L
2005 Legacy 2.5L, Turbo, EJ255
2005 Outback 2.5L, Turbo, Eng Cfg H4, EJ255
2006 Forester X L.L. Bean Edition 2.5L
2006 Impreza WRX Sti 2.5L
2006 Outback XT 2.5L
Customer Concern:
Trouble code P0011. Active Valve Control System (AVCS) B1
position over-advanced and excess smoke from tail pipe.
Potential Causes:
– Banjo Bolt — Install banjo bolts without screens.
– Turbocharger
Diagnostic Codes: P0011
Tests/Procedures:
1. The intake cam is advanced when it should not be. See TSB
02-97-05 for possible restricted AVCS banjo bolt filter.
2. Check scan data for cam position.
3. Check oil pressure. If low check the intake manifold for
oil.
4. If oil is present, there’s a possible turbo seal leak,
causing low oil pressure.
Courtesy of Identifix.