I have a 2010 Dodge Ram 1500 with the Evo all and the T harness. Along with the standalone 3x factory remote start, i added the REVO-1 RF Kit. Everthing works perfectly fine until the outside temperature drops down to probably 20 to 30 degrees F and colder. If the truck has set for a while, using the Revo, the solenoid will chatter for several seconds before it will eventually start. Now if the truck was just running and shut off or recently running. The second start attempt using the Revo, the truck will start no problem and continue to until it sets awhile in the cold.
Using the factory 3x remote, no issues no matter the temperature. The REVO also will work just fine when temperatures start to rise.