Super Weak Gas Milage

[prdquik]

My car gets like 14-17 mpg . The motor is brand new with like 3,000 miles on it. It went for smog testing in november, and passed with flying colors. What could it be? I need this fixed already.

EDIT:KA24DE,Its manual, I drive about 70% streets and 30% highways, And the motors stock.

Modified by prdquik at 5:11 PM 1/3/2010
Modified by prdquik at 5:19 PM 1/3/2010

[TheRealNap0le0n]

transmission Type?

Typical Driving Conditions?

Mods?

btw my car just clocked off 29mpg

[prdquik]

transmission Type?

Typical Driving Conditions?

Mods?

btw my car just clocked off 29mpg

Its Manual

About 70% streets, 30% highway

And motors stock.

I wish I was pulling 29mpg

[danield319]

. The motor is brand new with like 3,000 miles on it.

what kind of motor?

[locoluna825]

what kind of motor? ka? DE? SOHC?

[prdquik]

what kind of motor? ka? DE? SOHC?

what kind of motor?

KA24DE

[E7-S14]

240s never got 29mpg

you should expect 17-19 city and 24-25 highway.

all depending on HOW YOU DRIVE though.

[prdquik]

240s never got 29mpg

you should expect 17-19 city and 24-25 highway.

all depending on HOW YOU DRIVE though.

I get like 170~200 miles to the tank when i'm reading about people that get 300

[prdquik]

And I read all these threads about similar issues and everyone seems to say replace the o2 sensor

But if it was the o2 sensor it wouldn't have passed smog in november would it?

[TheRealNap0le0n]

240s never got 29mpg

you should expect 17-19 city and 24-25 highway.

all depending on HOW YOU DRIVE though.

my motor has 2'000 miles on it. s14 KA24DE manual transmission, stock intake, stock exhaust aside for a muffler, egr removed, swirl valve disabled, charcoal canister removed

on my trip home from miami i got 29mpg dont believe me... but my wallet does

[locoluna825]

i will get 29 and sometimes even 30 on the freeway. but i only get 18 or less in the city depending on how i treat it.

[chaosli]

i got 9 highway 4-5 local single cam turbo no tune

befor turbo i got over 300miles a tank always shifting befor 2700rpm

[E7-S14]

i got 9 highway 4-5 local single cam turbo no tune

befor turbo i got over 300miles a tank always shifting befor 2700rpm

wow.. might as well just LS1'd it.you'd get better gas mileage and be just as fast...

[dana541]

you have a serious problem if you are getting that kind of mileage.turbo charging makes your engine run more efficiently.at low boost cruising you should get better mileage than before.

maybe you have a giant hole in your gas tank

[PEZi]

i don't have a KA... but i have the predecessor to the SOHC one... same bore and stroke... my truck weighs 2,000 lbs and after the project i'm currently doing i'll be looking at 10 mpg highway

as long as you're not fouling spark plugs consider yourself ok

[xX RB Xx]

damn i used to get 30 mpg in my de 14.

[Nonsense]

I got about 360 to a tank in my Auto s14

[prdquik]

Ok anyone have any ideas as to why my gas mileage is so Sh***y?

[LayNLow240]

s*** I got like 32mpg on my trip from nashville to memphis. When I had it I got like 24 city driving. Check your plugs, gap, wires, cap, rotor, fuel filter, and o2 sensor if they arent new. Otherwise check your fuel lines for cracks and or weird discolorations. Also check your ground and power wires, and make sure all of your sensors are plugged in and secure.

[dana541]

check your oil for fuel.maybe an injector problem.

[youngun21a]

I get 29mpg..sometimes i make it to 31..but rarely...I haveCP Pistons Comp_9.0:1,Supertech Valves,stage two Crower Cams..and a cheaps air intake with a aem filter...