Originally Posted by dodgezilla04

for the manual trans trucks, you'll need a ecm pin that comes with a 6" pigtail. you gotta ground pin 22 on the ecm harness, ground it directly to the ecm mounting bolts. pin from cummins was $7.
then have it enabled, or buy a programmer that does it.
mine works great. took 10 minutes to install the pin.

at least this is how the nv5600 folks do it.

Originally Posted by mastercaster

you don't need any extra parts to enable the high idle on a manual trans!! i did mine and have posted how to do it before (on other forums). you need to have the dealer enable it, just like on the auto trans. the only other step is to ground the one wire. the wire is located on the firewall. driver side, far left bottom firewall. basically if you go staight back from the emergency brake handle to the firewall, you'll see a large wire harness, white in color. you can unhook that harness, and behind it there is a very short (4 inches maybe) dark green wire coming through the firewall. the wire has a heatshrink cap on the end. strip the end of the wire and ground it to one of the two bolts next to the harness. that's it! let me know if you need more info. you'll need your flashlight to see that little wire back there. that's it folks no money on any parts. that wire is for the optional clutch safety switch. it is really not needed, as the transmission has to be in neutral and the emergency brake set, in order for the high idle to activate. if you touch the brake pedal, release the emergency brake or put it in gear, the high idle will disengage.