peugeut 307 can't go uphill

I have a peugeut 307 1.4 hdi 2004 model diesel car. 4 months ago I gave my car to the mechanic because the radiator was leaking water and the brake discs were broken. when I got my car back, my car no longer started to pull on the slope. On the slope I entered with 100 km / h, the vehicle was dropping to 70 km / h because it did not eat gas on its own. I had to go up the road that I used to go up in 3rd gear in 2nd gear at high speed. I then gave the vehicle for repair again, but they could not find the source of the problem. turbo revision was done, injectors were revised, but the vehicle still has the same problems. I then took the vehicle to a place that offers autotest service. here they connected the vehicle to the tester and these are the errors that came out; heating time control is faulty air intake system adjustment deviation positive clutch pedal switch signal mismatched camshaft position sensor no signal Then I gave the car to another mechanic and they used the car there for a while and said that the turbo does not engage in this vehicle. There is no mechanic I have not taken it to, no one can produce a solution. show me a way.
Apart from that, the vehicle sometimes gave me “antipollittion fault” for no reason.

Gotta engage ur turbo.

This is primarily a US based forum and Peugeot has not been sold here for decades.

Have you tried a Peugeot dealer ?

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If you have error codes like Pxxxx please provide them. It doesn’t look like the shops that you used agree on the problems. I think you need new mechanics.

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If Peugeot dealership service department can’t fix it, you might be out of luck.

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