Bought an 05 outback xt a few months ago. First drive cruise control cut out and light started blinking, but not Cel came on. Since then I've had in 10 times, yes 10 times at two different shops, including Subaru dealership, to no avail. Plugs, maf, knock sensor and throttle body have been replaced. Running 92 gas doesn't help. Cruise start blinking under heavy acceleration. When cruise works, it surges and occelates on and off, really annoying and undrivable. Everything on the car is stock as far as I can tell,.except previous owner replaced clutch himself. Under accelation the car stutters a bit, but has plenty of power. Seems like the knock sensor keeps tripping? No codes have ever been thrown, been hooked up to the code reader multiple times. Any ideas? Any help is appreciated as I'm at a total loss. Thanks.