have a 07 chevy kodiac with 6.6 the 2855 flash pak does not power up when plugged in the sales person from super chip that said it would work the tech's say no. What have you found works

pacific performance enginering www.pacificp.com used one on an 08 kodiak..

If you cant find what your looking for, I am a member of another forum that is pretty helpful. www.thedieselgarage.com

Goodluck

Check your fuses. Look in the manual for the fuse that powers up the OBDII connector.

Check Cig lighter fuse--common problem

I am also a member on there. Lot of good people.

im sexytrkr on TDG