jeep patriot 2.0 crd
With a speed over 120 km/h, it would go into safe mode.
The engine light would come on and it would lose power.
Turning off the ignition, turning it back on, and it would work normally.
Acceleration and then the same issue again.
Mechanic diagnosed a problem with the "turbo boost pressure sensor".
Ordered a part for 400 euros from Germany.
Before ordering, I put the cleaner in 50 liters of good diesel in the tank.
Trip with 3500-4000 RPM. It takes quite a while though. Persistence.
Not half an hour like the instructions say.
Result. Like new.
I don't know if the liquid did the job or just the high RPM cleaning.
Most problems with diesel engines are caused by dirt.
A friend of mine had issues with the injectors and after cleaning, everything was fine.
It's worth trying before spending money unnecessarily.
But it requires persistence. Ideally before a long trip.