How to Solve the Issue of Black Smoke from Iveco?

[LeAxel]

Check whether the sensor is damaged and whether the input signal is correct, as sensor damage can cause black smoke faults. Use a vacuum gauge to measure the engine vacuum level, then inspect all air hoses in sequence for leaks, using the method of individually cutting off the vacuum to troubleshoot one by one. Some smoke faults are caused by sensor damage, while others are not caused by the sensor itself but by some other reasons.

[Marlene]

I've been repairing vehicles for decades, and black smoke from Iveco trucks is quite common, mostly caused by fuel system issues, such as clogged injectors or insufficient air supply. Black smoke indicates incomplete diesel combustion, so first check if the air filter is dirty—replace it if it is. The fuel filter might also be clogged, affecting fuel flow. Don’t forget to inspect the turbocharger; insufficient boost can lead to inadequate air supply to the engine. In severe cases, the injectors may need cleaning or replacement. I recommend addressing it early to save fuel and protect the engine. Regular maintenance is crucial—replace the three filters periodically to prevent issues. Also, avoid overloading the vehicle, as excessive load can easily cause smoke problems.