Peugeot 308 1.6HDi - Anti pollution issue

[Swiper]

Peugeot 308, 2008, 1.6Hdi, 90 hp.

Hello everyone,

I have experienced the "Anti-pollution system faulty" error message in my car about 3-4 times this year. The error message always disappears on its own after a few hours. Once, I took it to a mechanic and he told me that he had seen that one of the injectors had thrown an error and that I should leave the car if it happens again... The next time it happened, I went to a friend who has a diagnostic tool on his phone and we checked and cleared the error message (see the attached picture). Today, it happened again as soon as I got on the highway and it happened for the first time while I was driving. Previously, it always happened while my wife was driving. Along with the error message, something about the particulate filter was also displayed. I couldn't catch the error message because I was driving, but the car accelerated very slowly and I barely reached 130 km/h. After 10 km, I tried to press the accelerator harder and was able to reach 160 km/h without any problems. After I arrived at my destination and restarted the car after a few hours, the error message disappeared again and everything was normal. What could this be? Has anyone had similar problems? I don't want to change the injector just like that because they are very expensive. Is it the DPF?

I should mention that the car is mostly driven in the city on very short distances, and we only go on the highway once every month or two.

The attached picture shows the error message for the "Anti-pollution system" and the error codes that I cleared using the phone.

[RichardW]

P0202 appears to be injector 2 malfunction, so it seems likely it's faulty. 1351 is glow plugs, and often comes up, but can be ignored.

[Paul-R]

What mileage (or kilometrage) has the vehicle done?

[Swiper]

I bought the car in Serbia, it came from Italy. When I bought it, it had 165,000 km, but every used car in Serbia has that much when they sell it