An update from this site again...very frustrating code89
It came back 3 days ago....spontaneously while driving on the highway ??
The day after, the car wasn't used and yesterday morning by turning on the ignition, the code was still there.
I made a tour to my work, about 120 km, and after work when turning on ignition again, the code was still there.
This morning, when turning ignition on, the code was gone.
Very strange issue.
This time with the code on, I haven't noticed any problems with the car. No power loose or something.
The only thing I noticed, when I started my car yesterday morning, it didn't start the first time. The second time without a problem.
Also by cold weather, after starting the car, it feels like it takes a little while to run stable.
Like a spark plug is a sort of malfunctioning ?

My car average consumption is around 5.5