my gas mileage has gone down about 2-3mpg since i put on my prochamber, i dont have mils yet and the cel is on, anyone else have this problem
Kilgore Trout said:gas mileage? wat dat?
Mychael101 said:Man I just filled up today and average 25mpg. Gotta get my car tuned soon now that I hvae my LT's in! Good thing is that my mileage hasn't changed a bit.
I'm not so sure about that. When my check engine light was coming on because of my EGR valve, i got worse mileage when the light was on, about 235 mile per tank. But the light would go on and off all the time. When it was off i got about 265 miles per tank. Now that i cleaned the egr out and the light is off for good i get about 280 mph. Then again, the egr has to do with a/f i believe, so that could be the reason. Im just thinking maybe the extra airflow is causing his ecu to add fuel to the mixture. I mean im not trying to argue, im not an expert, just askin.....9646gt said:those rear o2 sensors dont affect the AF ratio at all..only monitor emmissions so that is most likely not the problem..maybe a leak could contribute to it..mine already had an o/r midpipe so I cant help much..maybe you are gassing it more to hear the sound? hehe jk
iStang said:Igndracer: What's the #39 in your sig. Do you have an anniversary model?
Seraphitia102 said:i get 15-16mpg with the stock exhaust