nedd help with check engine light!

[silent_dan]

Hi all,i have been around this forum for a while now and this is my second post but anyway...i was driving my ford focus 2001 zts and all of a sudden the check engine light came up.
The car is running fine and all but im still concerned with what the problem may be.
I just happen to read a previous thread about check engine light problem and there was a tip on how to look up the DTS codes generated.So i did that but it didnt have any codes and the word "NONE" was flashing.
Does that mean that nothing is wrong and if thats the case hoew do i get rid of the check engine light beside taking it to my local dealer.
Thanks to any replyes in advance.
Cheers!

[Mustangman25]

Whoever pulled the codes for you should be able to clear the codes.

[Turtle1217]

hey make sure all the electronic sensors are connected firmly ie o2 sensor. and be sure your gas cap is on and other minor things like that. if it's just a sensor loose the check engine will turn off shortly after you reconnect. Hope this helps good luck

[silent_dan]

Thanks for replying fellas and i have one more question...where is this O2 sensor located at.Im not 100% familiar with my focus cause i only baught it recently and i also never had to go under the hood to mess with it.
But ill definetely check everything i can to make sure nothing is loose.
I hate taking my car to the dealer cause i hate the place i bought my car from.They are not very helpfull when it comes to servicing my car and i alway wind up leaving my car for couple of days there and thts the one thing i dont wana do.
But ill definetely check everything before i go there first.
Thanks guys for your help on this.
Cheers!

[Mustangman25]

O2 sensors are before and after the catalytic convertor, which, in the Focus, is right under the exhaust manifold.

[silent_dan]

ok im back again..i wind up disconecting the battery and connecting it back up and the check engine light is gone.I dont know if what i did was the smart thing to do but it seems to take of the problem for the moment cause i hate driving with the check engine light on its very distracting.
If it reapears again then ill take it to the dealership.
Thanks and cheers!

[canuck]

My engine light came on yesterday. The car runs ok. After some reading on this site I thought it might be an emission sensor because my air filter is dirty. Then I remembered the quicklube guy couldn't get the bolt off to replace the air filter (the one that gets corroded by the battery fumes on the positive side) so I was going to do it myself and forgot. Sure enough I changed it and no more CEL. Haha. I was freaking out it was going to be something serious and expensive.

By the way, Cdn Tire only has $50 code scanners for pre '95 cars. The OBD-2 scanner is $250. Where are you guys finding these cheap ones for the Focus?

[silent_dan]

So i called the service department at my local dealer and had a conversation about what the problem may be.He said that the reason the cel is on is posibly due the hot weather.Also he said that i should remove the gas cap and put it back on every now and then.He advised me to wait a couple of days and see if the light goes away by it self.
I asked him to tell me how much it costs to check for any error codes and he said like $100.Thats like higway robery to me since i can go to canadian tire here and buy a odb2 code reader for $140 right now.
Also would like to know if i went ahead and tried to clen the maf sensor and a few other things would that void the waranty on my car.
I realy am out of options here cause i dont want to bring the car to them and they check the car for any codes and find nothing then im out of $100 bucks.Or maybe ill take it to Maydas,they ofered to check it for $40.

[Mustangman25]

Cleaning your MAF sensor shouldn't void your warranty at all, but if you f*** it up, as it's a delicate piece, it will set you back at least $100 for a new one.

[silent_dan]

Yea ithink ill wait a little, cause i went out for a drive a the light went away somehow..go figure.Hopefully it will stay away this time.

[silent_dan]

Just a quick update on my situation...Like i said the light disapeared and than at the end of the day it came back on.So i waited again to see if itl go away and after of couple of days driving it did and now its been like 2 days and still no check engine light.
Weird!