i got codes for p0109 p0191 p0171 they all point to something with the air intake what would be the first thing to check?
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2005 Ford Five Hundred Question: codes problem shooting
Answer #1Visitor, April 28, 2010, 14:51
check air filter first then mass air flow sensor
Answer #2fernando April 28, 2010, 15:55Master
mastertech6371 April 28, 2010, 18:16Master
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.
Answer #4Visitor, October 29, 2010, 18:00
i got code po193
Answer #5Visitor, August 13, 2011, 18:59
were is the air intake at