Error codes 51,52

52 Shows knock sensor which I already replace anything that I need to replace?
And the other one says code 51,ac switch or tps,ecu?
Waiting for the reply,
Thanks

52 is most likely the sensor wiring harness or connector. Check the tightness/cleanliness of the connector to the sensor, and make sure the harness is in good condition and not pinched anywhere.

For 51, check the connections and wiring condition.

The tips connector inverted.