Sensor Trouble Has Anyone Been Having Check Engen Light Problems - Ford Forums

azford · 04-21-2008, 20:39

Need to Know if anyone has been getting codes PO171, PO174 AND PO401

Been haveing trouble with carbon building up in my intake. Has anyone eles been haveing the same trouble with there F150

Crabby · 04-23-2008, 16:13

Are you sure you are getting carbon build up in your intake? That would indicate combustion in the intake ... and most likely would be noticeable from the associated fire and explosion(s) (intake backfire?) ...