Check engine code P0171?

2017 FORD FUSION
114,000 MILES
Avatar
SCARPENTER85
  • MEMBER
  • 1 POST
I started to clean the MAF sensor and when I unplugged it there was what looked like oil in the connection and was wanting to find out if that was normal or if there was something else wrong.
Jun 11, 2023 at 4:36 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,193 POSTS
  • ASE Certified Mechanic
Hi,

Chances are there is nothing to worry about. Oftentimes, people use dielectric grease on connectors to help maintain a good connection and prevent corrosion. That is likely what you are seeing.

Take contact cleaner and spray out what is there. Then, if you want, you can use a little dielectric grease to help seal the connection. I attached a pic below of what I'm referring to. Oftentimes a parts store has it at the checkout in a small container for a dollar.

Let me know if this helps.

Take care,

joe

See pic below.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Jun 11, 2023 at 6:37 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.