If you replaced the ECM and steering column, was the new system programmed to recognize the new key? Is the anti-theft light staying on or flashing?
If it is, try this. Turn the key to the run position and allow it to sit for approximately ten minutes. The anti-theft light should turn off. See if it will start at that point.
Let me know.
Monday, December 19th, 2022 AT 5:00 PM