Hey guys! New to the IS community and cars in general so go easy on me. Picking up my first project, a 2001 is300 that was recently swapped to a w58 MT. To my understanding, the car thinks it’s in park and makes the car run poorly with the swap. I picked up a 2jz-ge M/T ecu off facebook marketplace but it didn’t come with the key that’s synced to said ECU. Plugged it in but security light comes on. What are my options to reprogram the original key to the new ECU? and also anything tips or tricks i need to know. Thanks in advance! Excuse my ignorance, fairly new to all of this.