Every V6 I own, I disconnect the Cold Start Injector. A Good running Motor doesnt need it, point in case, My wifes 86 GT has over 140K on it, and it doesnt even spin a complete revolution before starting. VERY rarely do you have to "crank it over".
The reason i do it, is that the 5th and 6th Cylinders (or was it 3rd and 6th.. the 2 cylinders below the injector) get extra gas to start up. Now if your cold start sensor (located right next to the injector) is bad, you get crappy gas mileage, AS well as extra fuel in those cylinders. Thats why most engine failures are failing on those 2 cylinders. The ECM just keeps spittin in fuel thinking the engine is cold.
So on my cars, i unplug the Cold Start, and just let the harness sit nex to the injector. Another plus of this, is that you can remove the sensor, and wire in a Mechanical Water Temp Gauge, without removing the Gauge sensor, as it works with the ECM as well.
Wow.. who knew i knew that? 
-Karl