I was out driving my car this weekend, did a long trip, about 1700km total.
After cruising for a while I started driving it a bit harder since the roads became more fun. Did this a few times in the run of about 5 hours, and in the middle of one of the 'harder' runs (harder meaning that I was no longer driving mindlessly along a straight highway) I noticed a marked increase in 'pull' of the engine, and it felt significantly more willing and eager.
So, I enjoyed it for the rest of the trip, thinking it was maybe the ambient temperature that put the ECU in a different 'mode' or whatever, expecting the car to go back to normal after a rest in the garage. But even today the car felt the same. I'm very happy, the car feels great and responsive, but I was wondering what could have caused it? It was like throwing a switch. Not like getting rocket power of course, but there was a significant change.
Only thing I can think of is mileage. I passed 4500km on the odometer (about 2800miles) just when the change happened. Maybe the ECU went out of 'run in mode' or some strange thing?
I remember driving the democar my dealer got in last summer. i got the first drive and liked the car. tried it again later when the car had 7000km on the clock and it again felt alot friskier. I thought it was just the engine 'loosening up' as it was run in, but with my car the change was instant and significant, and at more or less exactly 4500km....
Then I thought about the Idle issue and some people that had their ECU swapped complained their car felt 'down on power'. Maybe they had already crossed this threshold and with the new ECU got back into 'run in mode'?
I have no explanation, but all I know is my car feels GREAT, even better than before!
