[blazor]

in my quest to fix my terribe gas mileage i have changed...

spark plugs
fuel filter
air filter
tire pressue
cleaned iac
cleaned maf
seafoam in the gas

after all this, im still getting unacceptable mileage compared to what i was getting a little less than a month ago. my driving style and habits are the same a they always where. im thinking my next step to tackle the problem would be my o2 sensors...

however, $200 for all four is not in my budget, i cant do it. im on a high school student salary ftl. i can squeeze $100 for the first two in front of the cats. Is this a good idea. would new plug wires be a good idea first and see if that helps?

56,2xx miles, 13 mpg, no cel, no codes...

[Dansby]

It is more than likely your o2s. I was having trouble with mine and it was dumping to much fuel into the engine and I was getting about 9 miles to the gallon.

[MWWarlord]

13MPG OMFG that is bad! Yes you should replace your o2 sensors ASAP. Do them one at a time if you have to, but with gas prices what they are now, it will save you money in the long run.

[blazor]

Originally Posted by jdansby1 It is more than likely your o2s. I was having trouble with mine and it was dumping to much fuel into the engine and I was getting about 9 miles to the gallon.

v6? i know mine is actually a little worse, but i havent calculated it exactly, but lets just say ive gone 40 miles on a 1/4 tank. so o2's is all u did and u were back in shape?

[Assassin_Dan]

You can give them a test if you have a volt meter and know a little about cars. I dont think new plug wires will really help much here either.

[blazor]

Originally Posted by Assassin_Dan You can give them a test if you have a volt meter and know a little about cars. I dont think new plug wires will really help much here either.

i got a meter, how do i do this?

[silvergtstang99]

i might be doing the same thing

[MWWarlord]

It is more than likely the o2 sensors. BTW...I don't know what your future plans are, but if you plan on any kind of big power you should get a wideband o2 sensor. Just figured that I'd bring that up since you're gonna be replacing all your sensors anyway.

[Dansby]

Originally Posted by blazor v6? i know mine is actually a little worse, but i havent calculated it exactly, but lets just say ive gone 40 miles on a 1/4 tank. so o2's is all u did and u were back in shape?

Yep, '01 v6. You should be getting closer to about 300 miles on a full tank. Im no where near that. I need to clean out filters and such. But the o2 sensors made a HUGE difference.

[blazor]

Originally Posted by MWWarlord It is more than likely the o2 sensors. BTW...I don't know what your future plans are, but if you plan on any kind of big power you should get a wideband o2 sensor. Just figured that I'd bring that up since you're gonna be replacing all your sensors anyway.

im staying n/a with basic bolt ons, nothing major. if and when i can afford a nice poweradder, then ill be able to afford a wideband set up

[MWWarlord]

K just thought I'd bring it up.

[blazor]

Originally Posted by jdansby1 Yep, '01 v6. You should be getting closer to about 300 miles on a full tank. Im no where near that. I need to clean out filters and such. But the o2 sensors made a HUGE difference.

i use to get like 270-300 (depending on how big of a dick i drove like on that tank)... then over a couple days it just went to shit. well that is all the convincing i need, i just want to get back to a decent sustainable mileage. $40 a week on gas is not working so well for my checking account.

[blazor]

Originally Posted by MWWarlord K just thought I'd bring it up.

haha you had good intentions only my friend

[blazor]

hey jdansby1, did u do all 4 or just the first 2?

[shadow5403]

Originally Posted by Assassin_Dan You can give them a test if you have a volt meter and know a little about cars. I dont think new plug wires will really help much here either.

well if the wires are bad, then the spark plugs arent going to be doing their job efficiently.

[blazor]

hmm, i still think its most likely the o2 sensors cuz the wires look ok still

[itschristorres8]

if your going to replace o2sensors
change the ones before the cats

[blazor]

Originally Posted by itschristorres8 if your going to replace o2sensors change the ones before the cats

okay, sounds good. tomorrow, ill see what happens.

[mustangjeff1997]

Hey, one thing though. When one of mine was out, it had the CEL on. So I'd make sure before I go off spending $50+ for them...

[blazor]

ive heard that a bad 02 will not always trigger a cel