ok, my girlfriends car is an automatic 1999 honda civic lx sedan. it has the stock 1.6L non vtec engine, brand new distributor cap, rotor, plug wires, plugs,water pump, timing belt, tps, and i dont know wut else. well the problem is its only getting like 28mpg. well i know it should be getting better than that. any suggestion?

 

o2 sensor?

 

heavy foot?

 

just replaced both of those too

 

nope..she drives extremely light..im a much heavier driver and i get 38-40mpg in my 2000 civic dx coupe 5speed

 

Because it's an auto!! They use up more gas than manuals do!!

 

dirty MAF sensor?

 

but would it really only be like 28mpg

 

will have to check that...is that the little black plastic plug in the airbox?? how would you go about cleaning that without damaging it?

 

??? civics use MAP sensors....