2005 Ford Five Hundred Q&A

2005 Ford Five Hundred Question: codes problem shooting

i got codes for p0109 p0191 p0171 they all point to something with the air intake what would be the first thing to check? -
Answer 1
check air filter first then mass air flow sensor -
Answer 2
For more information about this OBD II Codes please visit these links; http://repairpal.com/obd-ii-code-p0109 and http://repairpal.com/OBD-II-Code-P0171-and-P0174 -
Answer 3
the large hose from the air filter to the intake has a couple of small hoses that come out from it. make sure they are all secure and tight. the 171 is a vaccum leak code for trims. Roy -
Answer 4
i got code po193 -
Answer 5
were is the air intake at -