Poor Gas Mileage
#1
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Poor Gas Mileage
Hey guys...just upgraded from an old 88 Accord S to a 1998 Civic DX Coupe. I've been driving it for the past couple of weeks and have been finding my gas mileage has been a lot less compared to my old 3G Accord. To me this doesn't make any sense-I know this car has a smaller gas tank (about 38L compared to 48L) but my old car was carbed and so I was expecting to spend less on gas with this one. Now, as far as mileage goes I've only been getting about 400kms (250mi) to a tank. Is this normal? I don't drive it like a maniac-I shift at the increments suggested by the owner's manual. The car has no performance mods, although it does have a remote start system which I avoid using because it wastes gas. I knowthe car recieved a minor "tune up" before I got it consisting of some spark plugs and an oil change. It also recieved a new O2 sensor because it woldn't pass the emmissions test without it. The car has only 132,000 kms on it from new. I just seem to see the gas guage plummeting faster than expected, my fathers Civic EX gets 550kms to tank. The car does not smell rich when running. Any ideas?
#3
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Re: Poor Gas Mileage (rideredorgohome)
tire pressures/alignment out of whack?
fuel filter
Sparkplugs/ wires / cap rotor - does it miss at all?
clogged CAT?
What kind of 02 was put in it? Some crappy ones stop working well after a few months.
There is a long term storeage for fuel trim in the ECU. You can unplug the battery for a few sec and this will reset the ECU. See if it makes any difference.
Do you drive mostly hwy or city?
fuel filter
Sparkplugs/ wires / cap rotor - does it miss at all?
clogged CAT?
What kind of 02 was put in it? Some crappy ones stop working well after a few months.
There is a long term storeage for fuel trim in the ECU. You can unplug the battery for a few sec and this will reset the ECU. See if it makes any difference.
Do you drive mostly hwy or city?
#4
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Re: Poor Gas Mileage (flood)
I drive mostly in the city with a few hwy trips a week. I will try the battery thing. I have noticed the car does not start as fast as my other civic. Could this all be the battery not being strong enough and giving a weak spark?
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Re: Poor Gas Mileage (rideredorgohome)
I forgot to mention I am going to check what brand the O2 sensor is. It has only been in for about 2 wks tho-but I've heard aftermarket O2's can be really crappy.
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Re: Poor Gas Mileage (rideredorgohome)
check air filter... and when its gets the the e line you have about 60 miles left.... then the light comes on but once the light comes on get gas.... or you'll get stuck somewhere i get about 300 to a tank in my 97 lx/vtec
and your car is straight eco... so try it..
and your car is straight eco... so try it..
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Re: Poor Gas Mileage (fallenasleepek)
I forgot to mention they also replaced the air filter before I got the car. They replaced plugs, air filter and o2 b4 I took delivery.
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