Doubtful. TPM chips come pre loaded with signing keys from the manufacturer. That allows 3rd parties to verify that an attestation made by your TPM is genuine. (They can do that by checking signatures all the way back to the manufacturer’s public cert).

If you replace the manufacturer’s signing keys with some keys you generated yourself, the only real effect is that your computer can no longer do remote attestations. So you can no longer convince any 3rd parties that your computer is operating in a “secure” mode.