Hello,
I have a 2006 Legacy 2.5i Limited.
The code that it is giving is a P171
The car has NEW Subaru Parts:
Ignition Coil, Subaru Ignition Wires, Spark Plugs, EGR Valve, All new Hoses (vacuum and cooling) New PVC Valve and Hose.
All NEW Subaru Timing Parts, (Belt, All Timing Belt Pulleys, Bearing, Belt, Belt Tensioner etc.)
New Subaru Fuel Injectors, Injector Seals/O-Rings
I run higher octane gas. 92-93
Thoughts?