2017 Mazda6 2.2L Diesel Idle problem

[ihasz01]

Hello everyone.
I have a 2017 Mazda 6 with a 2.2 diesel and automatic transmission 130,000 km in it. In the spring, when the outside temperature is above 14-15 degrees Celsius and the engine is warm, after driving a few kilometers and then stopping in a parking lot or at a red light, the idle speed fluctuates slightly around 750 rpm and it becomes louder, and the car shakes a lot as if it wants to stall. The exhaust also smells very bad at that time. This problem does not occur in winter or in cold weather, there are no error codes, the engine has been cleaned, and the MAP sensor has been replaced. Has anyone had a similar experience or a solution to the problem?

 

[Elrathias]

2017 is sadly the last year that had the injector seal problems, and im betting that "engine cleaned" means it has been oil flushed, witch probably did absolutely nothing to improve the sludged up intake ports or manifold/intake butterfly valve right below the egr injector pipe.
Because something is feeding that engine too little air in comparison to what it expects and calculates should be in the cylinders, ergo low idle almost stalling.