check engine light!

[waitingformsp]

My check engine light came on yesterday. I thought it might be due to low fuel, but after I filled up it stayed on. The only other thing I can think of is I washed the car in the 24 degree weather. The oil is full, gas is full. Any ideas, Or am I headed to the dealership sometime this week?

[Cameleon3]

check your air filter...I replaced mine and the light turned off...

[LinuxRacr]

Also make sure your gas cap if tight. If it isn't. then tighten it, drive around a day or so. If nothing is wrong, it will go off.

[ZiO]

had that happen to me w/ the gas cap thing..... if not then most likely the air filter idea should be good....

good luck

[waitingformsp]

Thanks for all the advice. I had heard the gas cap one before but it sounded weird that it would take a couple of days for the light to go off. I'll check the cap again and the air filter although the car only has 2100 miles on it. Thanks again.

[stealth]

It takes a couple of days because the computer will only reset the light if the problem that cause the CEL does not occur again after a certain amount of times you start your car.

The CEL will not turn off as soon as the problem disappears.

[RyanJayG]

my CEL came on after installing my intake and exhaust. I figured it was cause by said mods, but it turned out to be the catylist falling out of my catylitic converter. Mazda replaced the cat and the CEL went away.