Hi all, this is my first post about this car. Fairly recent buy. Love it. Some questions...

In recent days I've noticed a severe decrease in fuel economy. I bought this car fully expecting a guzzler and Im OK with that. But I know what's normal for the car and recently it's dipped, hard.

So among other things I've learned from searching this forum I want to check the Pre Cat 02 sensors. What's confusing is a lack of clear information as to where these are located. I looked under the car and could only see what I think are post-cats. Some videos online show 02 sensors by side of engine accessible from top, but my car doesn't have these.

I see lots of people saying "its really easy, 10 mins" but I can't see where the sensors are that it's so easy to replace.

Any information/direction would be appreciated. Thank you

xoxo - Newb