I recently had to flash my '04 back to stock to get through emissions testing. For some reason, the computer wasn't running through it's 7 internal tests w/ Wayne's tune (catalyst and one other, which I can't remember now, weren't being completed), so the car wouldn't pass. Apparantly, at least in my area, they'll allow for 1 of the 7 tests to be incomplete - any more than that and the car fails.
Anyway, I flashed the stock tune back into the car and drove it about 40 miles, then went back for the emissions test. The car passed with no problems. Then I decided to leave the stock tune in the car for a week and see what happens. Well, it ran like crap, IMO. The bogging and surging (especially when cold) was annoying, the revs were hanging at times, and my gas mileage dropped about 2mpg. Also, the car has n-o-t-h-i-n-g below 2,000rpms!
Well, that only lasted a week as I had to put Wayne's flash back into the car. I figured I'd try his highway program this time since all I've ever used was the street program. See if my gas mileage goes up in a few weeks, and if not, I'll just put the street program back in. With either the Street or Highway tune, it's hard to expain how much better the car runs and drives. IMO, definitely one of the best mods that can be done if you're keeping it simple like me. I really don't beat on the car too much at all, just back and forth to work everyday, and with a tune it runs so much better than stock.[thumb]
