so my gas mileage keeps getting worse and my exhaust smells terrible. I have a little over 1/4 of a tank left and i've driven 95 miles. https://www.nopistons.com/forums/pub...1047683664.gif



i'm guessing old leaking fuel injectors? when its cold, my car has major problems starting up (hesitation until it gets warm, likes to stall out, i usually just let it idle for like a minute or so)



any suggestions?

how's your 02 sensor?



mike

do you like WOT ? https://www.nopistons.com/forums/pub...#>/biggrin.png

over the christmas break my mechanic hooked my car up to a computer and said he didn't pick up any problems with the sensors.



every time i'm around people, they know i've been in my car because i smell like gas, and its not from any beans i had the night before.



what is WTO?

WOT=Wide Open Throttle, in other words "do you have the need for speed"

dude, my car is doing the same ****. all ecu codes check out ok, minus the emissions that have been removed. im not easy on the throttle, but 5 mpg is pretty ridiculous. compression is good and all that business. i dont know what the deal is.

if you constantly are beating on the car, I can see getting 5-8 mpg.

rob, that sig is lame as hell. i manage about 12mpg on the highway, thats at cruising speed. (read ~70, not 120)

You people are not looking at the obvious...



you have a modified turbocharged car...they all get **** gas mileage, pistons or no pistons

Mine gets great mileage considering it runs rich enough to toss a flame out every time it goes over 4k. I get 23mpg highway, and at worst 14.5 mpg if I'm taking it to redline off every 9/10 lights.

thats the key to mileage, right there. the o2 sensor only works below 3800rpms and 1 psi of boost, if you exceed either one of those it will go full rich



mike

that's the same for me, i get 17 mpg on the road from here to san antonio, and 13 here in town (yeah, i usually shift at 4K at the earliest and everytime i drive it i push it to 7k at least once). Still, this last tank has been terrible, and should my exaust smell this bad?

I didnt know that Mike. God I'm ready to ditch this factory **** and go aftermarket EMS. https://www.nopistons.com/forums/pub...1047683358.gif

The juice man is hilarious. He's got some crazy eye brows, lol.

with no smog equipment any fc will stink at idle.



regarding the poor mileage, your car is probably just running rich... you need to check everything but they all run rich with the stock engine management. might be time to check out an s-afc or go standalone.

Make sure that there no fuel leaking by the injectors.You could have a bad O-ring but I highly doubt it tho.

I lost about 1/4 of a tank in 30 seconds, when my fuel rail popped off. You might want to check for leaks.

its SUPPOSED to be lame and ridiculous, lol