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Discussion Starter · #1 ·
i have a 1995 honda civic dx with a jdm 15b and a p28 ecu

my problem is that i am getting horrible gas milage, and a lot of build up on the bumper.

i have a header exhaust (no cat)

just brought my car to the shop and had it tested

they adjusted the tps
fixed the timing
got an air bubble out of the coolant
my coolant temp sensor tested good

i havent got my oil changed yet but anyone have a clue what could be the problem

-sammy
 

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what kinda oil filter do you have ?

and have you change the airfilter ,fule filter,?

ive also heard somthing that the Ecu is telling the ngine to dump more fule... but thats rare ..
 

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what kinda oil filter do you have ?

and have you change the airfilter ,fule filter,?

ive also heard somthing that the Ecu is telling the ngine to dump more fule... but thats rare ..
I was thinking the about maybe a bad o2, or oil leaking into the combustion chamber. Or maybe bad Piston rings.
 

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is your oil black ?

some guy on H-T had a problem like that .. it was his Oil filter ..

if that doesnt work use Seafoam ... never tried it but heard it does wonders!

and when was the last time you changed your cold air intake filter ?
 

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Discussion Starter · #7 ·
do you know what filter i am suppose to use i used the standard filter for honda's that fram reccommends, i have to clean my air filter, my oil is black i need to change that asap. 02 is brand new
 

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I keep seeing all the post of bad gas milage on just about every fourm i got to. I swear sence gas price's went up milage went down. I think they are adding something to gas or taking somethig out so it burn's quicker so we have to buy more.

But if your milage is that bad i'd check/change all the filter's. Im not sure if you said it or not but what your driving habit's like? If you speed alot or take off fast hell ive even heard of breaking hard lower fuel milage but im not sure how nor do i know how true it is. I'd start by changing your driving habit's if that't the case then id check/chane filters.
 

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how bad is bad, got any numbers

also what are the plugs ,wires, cap, looking like

ie arcing in the cap or moisture. and if the plugs look like u are running rich

also what gas are u using, b/c that motor runs best on 87
running premium u loose about 5mpg
 
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