STUKUP2112

Recently, I changed my factory hood to a Ram Air Cervinis Hood w/o air ducts. It most likely is a coincidence, but as soon as the install was done, I started the car and the check engine light came on. The code was P02195 , which means it's trying to lean out, or running to rich. I cleared the code and the check engine light never come back when while driving. It only comes back as soon as I start the car and it remains in idle . Any suggestion on what could have happened or any solutions ?

houtex

Lots of reasons. Leaky intake, leaky vacuum lines, fuel pressure issue, the sensor itself, wiring... This site shows them and a lil' video:

https://www.autocodes.com/p2195_ford.html

You can also google the code, P2195, and see other websites about it, but pretty much it's a little goose chase to find it, seems...

That it happened while your hood got swapped is likely just coincidental, as I'm sure you only hit the four bolts for the hood itself, right? Therefore, there's nothing that the hood swap itself would have done. The non-ram air ram air scoops don't matter, as the intake system is closed off and does not care about that. So unless somehow a vacuum line got nicked, a wire got cut/chafed, a fuel line suddenly sprang a leak because bumped about, then the hood isn't the issue at all.

This is a generic code, meaning all cars can throw it if there's this condition.