I had this done last Friday after my '07 exhibited sluggishness and surges when cold, the A/C wouldn't immediately come on when temps are high, and it seemed like the MPG was off in my Message Center. When I got the car back I noticed an immediate improvement in both the sluggishness and surging as well the A/C problem, which fired up immediately. I didn't notice a change with the MPG estimation. It worked well for a few days until today, when I noticed that the sluggishness was back when first starting up, and the A/C was no longer firing up immediately.
Anyone have any clues? Do I have to get it re-flashed again??
TIA
Anyone have any clues? Do I have to get it re-flashed again??
TIA