I installed this on my 2001 Dodge Ram 2500, everything ran smoothly until the wiring I had routed the manual transmission through the wiring harness to the brown wires in line with the directions of the wire to route goes to APES or TPS ended up with a vacuum solenoid, had to pull it out again and run it with the wire that goes to the temp sensor, then in my truck the brown wires were too short, had to add about 12 inches to the ones the factory routes that are mentioned in the instructions, the real problem was the connector on the vacuum solenoid, it was crimped onto the insulation so it didn't work, thank goodness I found the system now works as it should