I had to disconnect the battery (negative cable) for a few hours on my 1998 Marea Weekend 1.6 Automatic.
When I reconnected the negative cable, I used the blue key to start the car and my car started, BUT, it idled at over 1,000 for a while, and, more problematically, my brake pedal went quite low and is quite spongy. (I had just bled them the day before and they were great!!) I drove for just a few minutes, slowly, before re-parking the car and it did not resolve the problem.
Did I mess up my ECU settings? Help! (I really need to use the car tomorrow!)
Thanks!