I'm having cold start issues with my 190E I just purchased.

On a cold start it will fire, idle rough, and then die. I have to go through this 2-3 times before it will finally start and stay running. However, I cannot give it any gas during this time or it will want to stall. After it's been running for about 1-2 minutes, I can give it gas and it runs fine after that. No issues warm starting, or if it's been sitting for 4-5 hours. Just overnight sitting.

I have tried changing out the OVP, and checked for vacuum leaks.

The next things on my list are to try to clean the Idle control valve, and then maybe swap out the cold start injector. Any other ideas?