at 90.000 km the car hesitates when acceleration and when accelerating hard the check engine light blinks for around 30 seconds then goes away. any clues?
Have the codes read, that will point you in the right direction.
Yeah, the clue is: have the error codes read that set that light and post them back here in the form P1234 and we’ll try and help. Most auto parts stores will read the codes for free. Give us the numbers and we’ll look up what they mean. Ignore the counter guy that reads them.