At 1,000 miles on my new XT, the check engine light came on, and the cruise control became disabled. I was aware that the light, and disabled cruise control, can be a result of a loose gas cap, but I am 100% certain the cap was tight. A check of the turbo hoses showed nothing wrong. After a few days of driving to make doubly sure the problem wasn't a loose cap, the dealer checked the error code, and it pointed to the gas cap. I've got a feeling Subaru is going to be having continual warranty trouble with this annoying feature. Anyone else having unexplained check engine light problems?

Well keep in mind that the OBDII system is very sensitive to emmissions. So if you forget to tighten down your gas cap OR overfill the tank by trying to round off the fill ups to some number.........you will probably get a "non blinking" CEL. Those are both YOUR fault.

Sorry you had the problem.....Subaru is no more sensitive to those issues than other cars......if it happens again ...try restting the ECU via the tried and tested battery disconnect method.

Hope this helps.....:) ;)

Thanks for the reply, Lakepop. A service mgr told me that seasonal changes in gas additives can cause the same problem. The battery disconnect idea is one I hadn't heard before. Tks again.

I got a solid check engine light now too. I was driving on the freeway and all of the sudden it just came on. I am suspecting that it's probably my Borla Headers throwing off the O2 sensor. I have had the headers on for about 20K miles though. Does anyone know where I can get the code pulled for free? If it's the O2 sensor, then it's an easy fix. Also, if it is, does anyone know where I can get that resistor with the wires that goes to the sensor to turn the check engine light off?

thanks.

Somebody said that autozone will read them for free but I haven't tried.
--Mark