MPG is 10 to 11 and it is stock ...Need advice.

[Jonathan Flores]

Hey fellow ST members,



I have a stock 01 ST and need to know what's going on. I should be getting better gas mileage since it is completely stock. The rear tires are kind of worn and need to get replaced soon. But asides from that I can't think of anything else. Any and all ideas are helpful.



Jonathan

 

[FlipTrac_511]

Alignment, tire pressure, air-filter, fuel-filter?

 

[Jacob Dryer]

all of the above and sparkplugs/wires?

 

[Dan gelb]

clean injectors

 

[Ian Gross]

Driving Style?

 

[Gerald Pierce]

Lighter shoes!



Seriously, all of the above. Tune up is my number one -- plugs, wires, air filter, fuel filter.

 

[Jonathan Flores]

I have feather soles...

 

[Jonathan Flores]

Thanks guys, thats the first thing I will do tomorrow morning it take it in for a tune up.

 

[Dean Hedin]

Possibles:



1) Your O2 sensor is bad. Computer can't get best mixture when crusing.

2) Engine coolant temperature sensor is bad. Computer thinks the engine is cold all the time.

 

[hal keiner]

Possibles:



1) Your O2 sensor is bad. Computer can't get best mixture when crusing.

2) Engine coolant temperature sensor is bad. Computer thinks the engine is cold all the time.

Is there a way to test these components so see if they are working correctly/incorrectly or does one just change them to eliminate them as a possible cause for poor mileage?



Thanks

(2002 2WD Sports Trac with 64K miles)

 

[shawn stonbraker 2]

hkeiner, the O2 sensors should be replace at certain intervals. At what mileage, I'm not sure right of hand. They are kind-of costly though, but as stated, they can be a major factor in MPG loss. To test them you have to check resistance across the O2 sensor. Most of the time though, they are dirty and just need replaced.

 

[Fudged Undies]

Is there a way to test these components so see if they are working correctly/incorrectly or does one just change them to eliminate them as a possible cause for poor mileage?

Another method of testing, easier but not cheaper is to get something that will monitor your pcm via obd-II. If you have a laptop, <a href="http://www.obddiagnostics.com/order.html"target=top>this one BR-3</a> works great and will probably be more than you need. Don't know if the scangauge can do all the stuff the BR-3 does. You download the software from the website, with free upgrades(software).



Well worth the $100.