Mechanics

HAVE SCAN CODE P300, P0304, P0305, P0306, P0171.

2006 Ford Fusion • 130,000 miles

I have check for vaccum leaks none, change spark plugs, and replaced coils. Still get the same engine code, the check engine light came back on after cleared. The engine temp is normal.
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Robert54
October 15, 2012.




The system is running lean with random misfres and cylinders 4, 5 and 6 seems to be badly affected.

Which engine do you have?


KHLow2008
Oct 15, 2012.
My engine is V6 3.0L.


Tiny
Robert54
Oct 16, 2012.
Check the PCV valve and its hose for damage and vacuum leakages.
AD


KHLow2008
Oct 16, 2012.

AD