89' k2500 cold start

???????Truck runs real rough only when starting below 32 degrees(Starts fine otherwise).if you put it in gear when it's happening it won't go faster then 2 mph.once warms up truck runs great. Changed temp sensor, injector sensors, still happening. Anybody seen this before??

You might check the fuel pressure. As these pumps age, the delivered pressure drops, causing a lean condition only on heavy demand. The colder the engine, the more fuel is requested by the computer. This causes a lean condition until the demand drops off, as the engine warms. Ray

Thanks, I'll definitely try that.