Fixed! Because the system was staying in Open Loop at startup, I decided to focus on the misfires errors, which were also appearing at startup. I cleared the errors and disconnected cylinder 1 connector from the coil pack and started the car and the errors still showed all four cylinders misfire. This happened until I came to cylinder 3, or C, and when I disconnected the plug from the coil pack and started the car, I only had misfires on cylinder C. Replaced the coil pack, because I always carry a spare in the trunk, and everything is fixed. This is the first time I have had one coil pack cause all four to have misfires. Makes me wonder if this hesitation at 3,000 RPMs would happen anytime the system is in Open Loop. In the picture below notice the discoloration of the center section of the coil pack.
Image (Click to make bigger)
Thursday, August 11th, 2022 AT 3:04 PM