Question about 2005 Mercury Sable GS
Check Engine light stays on. Auto Zone reads code PO174 What can I do to fix the problem?
Trouble Code: P0174 Fuel System Too Lean (Cylinder Bank 2) Possible Causes:
Air leaks after the MAF sensor, or leaks in the PCV systemExhaust leaks before or near where the HO2S is mountedFuel injector(s) restricted or not supplying enough fuelFuel system not supplying enough fuel during high fuel demand conditions (e.g., the fuel pump may not supply enough fuel)Leaking EGR gasket, or leaking EGR valve diaphragmMAF sensor dirty (causes PCM to underestimate airflow)Vehicle running out of fuel or engine oil dip stick not seated
Fuel System Too Lean (Cylinder Bank 2)
Posted on Dec 30, 2012
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Posted on Jan 02, 2017
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