High NOx Smog Failure (Defeat or Bust) (Page 9/9) Notorio MAY 02, 11:43 PM quote Originally posted by Kitskaboodle: As promised, I did a mild “shake down test” today. Since this is the first real drive since I got it smogged, I didn’t want to drive it a long distance from home just in case the engine started behaving badly. (since I still have the intake port tube of the egr solenoid plugged) Anyways, the run was mostly freeway cruising, about 65 most of the time. I drove approximately 35-40 miles total, which included a detour off highway 280 to go up into the hills. (Sand Hill Road up to Old La Honda Road and back on Alpine Road) Weather was about 68 degrees most of the trip. As an fyi I did not drive the car hard during this trip. (I drove like a “normal” person) 😀 I’m summary, the car drove absolutely fine. No idling issues at stoplight, no acceleration or hesitation, no overheating, nothing. Granted, it might have been a more “telling” summary if it were 80-90 degrees out but that will have to come later during the summer. Comments? Kit Sounds interesting so far. My car, with the test plug removed, has also been running fine. I'll see what the gas mileage is, although it has been mostly around town and a bit heavy on the foot.