LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Controls - Diagnostic Methods (Except Diesel & Hybrid)) >> Adaptive Fuel Diagnostic Trouble Codes Diagnostic Techniques >> DTC P0172/P0175: System Too Rich Diagnostic Aids >> Base Engine

Base Engine

WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2005 Mercury Sable, 2005 Mercury Mountaineer, 2005 Mercury Monterey, 2005 Mercury Montego, and 2005 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

Engine oil contaminated with fuel can contribute to a rich running engine.