hi all would like some info on my 2010 ram 3500 dually she runs at high idle by her self when i start her up in the morning and also have been getting a code p2609 when i use the remote start any help please

 

The remote start will shut down when ANY codes are set, but will restart normally with the key. One thing to check if the truck is stock and not deleted is the intake temp/pressure sensor that's located in the side of the intake horn that attaches to the cylinder head. It's held in place with a single screw. The sensor tells the ECM what the temp and pressure of the air about to enter the cylinders. When we deleted our trucks one was so badly contaminated with carbon we could not get it clean and had to replace it the other truck even though the intake was clean the sensor was still badly covered with carbon.

 

thanks for info will try that. would that sensor also make the truck rev up on its own on cold starts? its doing that now even after warmed up thanks for any help withthis

 

I looked up that P2609 and its' the "intake air heater system performance", perhaps your grid heater is not turning on, do you see it cycle in the volt gauge? I should add it is supposed to go into high idle when the truck is cold and even if warmed up if the temp starts to drop it will go back to high idle. Do you run a winter front, is your coolant topped off?

 

thanks for that no i dont run a winter front not cold enough here for that yet and yes just serviced the truck and all fluids are full