Getting Low Miles Per Gallon

[hatchback69]

Single cam civic's are suppose to get a lot of miles per gallon of gas, correct? My hb is only getting about 15 miles per gallon, highway miles. All i have on it is full piping exhaust and a short ram intake. I was getting a lot of miles until a few weeks ago. I haven't done anything to it but changed the oil and spark plugs. Any ideas would be appreciated, thanks.

[imported_mntdewred]

how clean is your air filter? injectors? how do you drive? do you floor it all the time or do you drive conservatively?

[CivicSi04']

u put the right plugs in the car right?

[hatchback69]

The air filter is clean and the injectors have just been changed recently, about 2 months ago. And no, I don't floor it all the time, I don't even go past 4500 rpm. All the plugs are correct.

[CivicSi04']

is your check engine light on, does your car emit a lot of darker colored emissions? did u gap the plugs, put them in right?

[hatchback69]

No engine check light is not on, and my car doesn't emit dark emissions. I haven't done anything to the spark plugs, gap the spark plugs? How do you do that?

[CivicSi04']

Originally posted by hatchback69@Sep 12 2005, 06:37 PM
No engine check light is not on, and my car doesn't emit dark emissions.* I haven't done anything to the spark plugs, gap the spark plugs?* How do you do that?

u said u put new plugs in the car, take one out and see if ur gettin oil on the plugs, also check to see if they are like a real powerdy white or like covered in fuel, u may not be gettin the correct spark. also check ur timing it might be off.

[Hondafig]

Need more details, like Year and option of car, and engine code. I would check for an intake leak, maybe take a fuel sample and have it tested for moisture or other contaminents. Does the vehicle run any different since you noticed the decrease and fuel economy???
If I just caused your head to spin with these questions, find the nerest drivablilty shop and start forking out the greenstuff.

[Hybrid_Coupe]

lol edit...realized that this post was old...i dont need to say anything.

[aperfectnightmare]

not all the time eh? But maybe alot of the time?