What is your question?
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What is your question?
everytime the car is in park i notice the oil leak from the bottom. the computer codes are po401 po171 po174

1 Reply
The oil leak is unlikely to be related to the codes you have. P0171 and P0174 indicate lean fuel trims - due to a vacuum leak, an air intake leak, or a mass air flow sensor issue. The P0401 could be an EGR valve sticking or EGR flow issue. Also could be a DPFE sensor issue. The oil leak - just needs to be inspected to find the source.