I have a 2011 BMW X3 with 53K on it.
Just a little background that might be useful: I bought this car about 3 years ago with a salvage title, since it was in an area where there was flood, however water had only gone up to half of the tire length and did not enter the motor or the car itself.
For the past 3 years, every time I start the car in the morning, the idle starts playing for a few seconds (~ 5-10 seconds) and then it lands on 1 and stays there. The car itself drives perfectly fine and even when i'm stopped at the stop light the car doesn't shake and the idle doesn't play.
NOTE: If i put my foot on the gas pedal as soon as i start the car and slightly rev the engine, it helps the idle to normalize faster (~ 2-5 seconds).
Recently with the cold weather I've noticed that the idle issue has become a bit worse and sometimes it feels as if the car is about to turn off but it doesn't. And the duration of the issue still lasts about 5-10 seconds.
I've replaced the spark plugs about a year ago, which didn't fix my issue.
Based on my search on google, it seems like the problem may be due to one of my fuel injectors, but i'm not sure.
Has anyone experience this before or has any idea what else may be causing this??
Here is the link to the video: https://imgur.com/007ajR2
The quickest way to a correct diagnosis would be a diagnostic scan.
Unfortunately, there is no check engine light on. However I did run a diagnostic scan as well and it came out clean.
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