Hey guys so I've had my car for a while
when I first got the car (stock) I was getting around 18-19 mpg avg
but now that I added a few mods it's only giving me 14-16 mpg
I noticed that the mpg loss was when I disconnected the battery (reset)
and started driving it a little bit fast, I understand that now the car
cruises in a lower gear to get a faster response but that doesn't explain me the richness
it's dripping a lot of fuel out of my exhaust
would a tune help on this situation or whats a good option?
added mods:
TDX2, Spacer, Drop in KN, Berk HFC on the mail

 

Are you positive it's fuel coming out of your exhaust?

 

Is your Check Engine light on?

There's no reason that your car should now cruise in a lower gear unless you did some sort of auto-tranny ECU reprogramming or swapped in a different rear end or swapped in really different outside diameter tires.

 

Leaking injectors? What mods did you do?

 

I have the oxygen sensor light on
(which I don't know why because I replaced it)
and I'm not sure if the injectors are leaking to be honest
tomorrow I'll be replacing my cats with HFCs
and I'll clean out my sensors and check if something is wrong with them

 

Did you turn off the check engine light after you replaced the oxygen sensor? And be careful of putting high flow cats in there if the injectors are leaking you will be wasting a lot of money because they will get melted right out.