Results 1 to 2 of 2

Thread: 05 Trailblazer 4.2, does the scanner show exhaust cam advance?

  1. #1
    Potential Tuner
    Join Date
    Nov 2013
    Posts
    1

    05 Trailblazer 4.2, does the scanner show exhaust cam advance?

    I'm working on a 2005 Trailblazer EXT with a 4.2L I6.

    I've been told the scanner shows cam position, but I can't find the PID anywhere. I can see in VCM controls that there is a 'Cam' tab, but all of the buttons are shadowed out.

    If anyone could point me in the right direction, it would be much appreciated.

  2. #2
    Potential Tuner
    Join Date
    Jul 2013
    Posts
    3
    yoyo, can't help you as I'm in the same boat, have a 2007 Envoy 4.2L with the P12 PCM. Done a lot of searching to see what VCM can display and very little information available. Hesitant to gamble on a purchace w/o a PID list specifically to record the variable cam readings and also for the commanded Vs actual fan clutch data. Searched this forum section (I6 engines) , seems ther's no real atlas 4.2L engine activity in a couple of years or longer.
    I'm Bob. '94 Camaro Z28 A4 , Cam, Stall, Self Tuned. '07 GMC Envoy 4.2L , '95 Chevy G20 Conversion 5.7L