kindly help! obd error code on 986 2.5L Porsche: toothed belt out of position

[perspectivism]

Hi

I recently got my engine back for a repair. My mechanic has not been very honest or open to me about what's being done.

The engine came back better (suffered from a blown gasket with milkshare sputtering out of radiator previously)

Few days ago I hear a flapping sound. The flapping sound got louder and I sought a second opinion..

Obd codes from another mechanic shows this:

The second mechanic says it could be the engine. But he is not sure which part.

Can someone help?

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