Peugeot 207 engine management fault

Hello friends. My name is Barış. I'm new here. I don't know if I've posted this in the right place. I would be very grateful for any help. My Peugeot 207 is a 2007 model 1.4 16v gasoline vehicle. The timing belt recently broke. The complete upper cover, valves, sensors, gaskets, bearings, wheel bearings, and the battery were all replaced. They were connected to the computer. The oxygen sensor faults were detected after they were replaced with new ones. While my car was driving in 5th gear at steady gas, when I released the gas, it suddenly gave an engine management fault error and exploded the rear exhaust canister with a huge explosion. It does the same thing when driving now. I immediately press the clutch to reduce the revs. However, the car is running at 1800 rpm and I constantly hear small to medium explosions from the exhaust. And the car doesn't want to go beyond 4500 rpm, as if it's not consuming gas. If anyone has experienced this and can help, I would be grateful.

There is probably a problem with the workmanship. I think the timing chain of the vehicle is not correct. The place you had the timing chain done should check the timing chain.

Hello. Time and Sente advance settings will be checked again on Monday, and I'll share the results here. If anyone has experienced this before, please share your solutions.

So, I can't think of anything else. Either there's a problem with the materials they used, or they missed a detail during assembly.