Annoying Engine Code..

Hey guys, i have an annoying prob, my check engine light comes on once and awhile, and if im lucky and dont have to unplug the batt, it goes away.. Its very weird, it comes on and off, like its been off for 4 days, then its on now, and goes off, and next day its back. One thing ive noticed when the engine light comes on is the Rad fan runs 24/7. Is this just showing that the electrical has a prob? Or is it probably the rad fan thats the prob? I have to pull the fuse so it doesent run 24/7, it makes it run worse and hogs more fuel.

go get your code read

if your car is running worse and getting worse milage, theres more to this problem then just the radiator fan running constantly, just get the codes read, most auto parts stores do it for free

the fan is most likely runing because the computer has gone into fail safe mode(or limp home mode) meaning the computer knows there is a problem and it doesn't know how to solve it, so until a technicion fixes the problem, the computer will do what ever it can do to prevent the problem from getting worse, for example if the computer doesn't know what tempature the engine is, it will turn on the fan because it is safer to have a cool engine then to be overheating.(there are other reasons failsafe mode would turn on the fan.)

Hmm, some good things to think about, thnx guys. I will see what happens then go and get it scanned. What shops are u guys talking about where u can get it done for free? Tirecraft etc charges like 70 bucks. U talking like partsource or napa or something?

Are there Autozones in Canada? They do it for free. A regular walk in mechanic shop might do it for free, just gotta ask around.

Autozone? I dont think so, i know part source, napa, etc. Ill ask around tho, thnx guys. I might as well get it scanned, cuz the abs lights on and has been for months anyways..

Sears sells the scanners for about $100. You will have to use a scanner to remove the codes. Unhooking the battery won't remove codes.

Check Canadian Tire.

I have same prob ...check engine light on and off... borrowed code reader ...showed PO174 system too lean(bank 2) now does anyone know where i should look 2 fix this