Cold Start Injector?

[tinypanzer]

I have noticed that my car (since I've had it) has always required me to give it some gas unless it is a hot start. If I don't, it will either just stall out immediately, or run real rough for about 15 seconds until all the injectors start hitting. Hot starts are no problem, it fires right up with no right foot.

Could this be a cold start injector not functioning? If so, how would I go about testing this? (1990 300SE W126 M103)


Thanks!!