i was wondering why my civic only gets 200m city on a full tank and only mods i have is intake, headers, catback. so does anyone know if thats normal. and on freeway o get 250m so any tips... thanks "87 gas at shell"

 

i got the same problem in my 94 civic lx with a D15B7 auto. maybe we can figure this out together. i hooked up a AFR guage and it says that i'm running righ so i jumped on ebay and picked up an new fuel rail and adjustable FPR to try and lean it out.

 

well mines does say anything thing about running lean or anything and my car is auto too. my cars ecu was replace before because some stupied *** jacked it. and now the dealer replaced it. so i don't have any clue what wrong it. i've work on a lot of cars and mines just weird.

 

Well before you go out and replace everything fuel you think it could be something less extreme? Examples: Lead foot, O2 sensor, tuneup, tire pressure, etc

 

would a chipped ECU offering a new a/f map really make the car get that bad of gas mileage??? Dunno how the mpg is but that's almost half the miles/tank if I'm not mistaken