Some LBZ questions...

[Mogman]

This from the instructions for the BD High Idle kit. Shows the circuit only goes to the ECM.

High Idle Control Chevy LBZ Duramax 2006-2007 | 1036606

For when days are short and the nights are cold, you want your engine to heat up quicker use the Duramax LBZ High Idle Control for the Chevy 2006-2007

us.bddiesel.com

They only ask you to set the Parking brake when using the feature for safety and not to depress the brake pedal. I am just guessing the signal cancels out the PTO function so its not active if you put it in gear.


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Thanks, I understand that, I had read somewhere the parking brake must be set, there can be restrictions in programming that have nothing to do with the actual hardware, (an example is if there is a MIL light the truck will not remotely start or at least keep running even though the remote start circuit has nothing connected to the MIL) It could of course simply be that it is "suggested" that the parking brake be set and that got converted by someone into it "must" be set.

 

[Lbzeagle]

I read somewhere there is another setting programmable with a Tech2 that enables the switch to ECM pins 8 and 60 to run PTO/high idle. It may or may not be in the base used for someone's specific DSP5. Wonder if anyone found this issue after installing the switch on an LBZ and overcame it without overwriting tunes? Not sure if programming just that setting with Tech2 would work with existing DSP5 tunes or be persistent when switching back and forth to other positions. Anyone have experience?

 

[Nate’s Dmax]

I have the high idle Pto switch wired in on my LBZ. All it needs is a 12v supply and it will work. I also have the DSP5 but my high idle is not included in it. Unless you call the factory high idle included.

 

[flhru]

I wonder if the Kodiak had a tow/haul mode, which comes out of the BCM on the LBZ, that would be required for turbo brake in the C/K
High idle is not a big priority, cruise and manual shift are and it looks like that will not be a problem with the LBZ.
Heck I might just look for a place to put the BCM in anyway since If I do a re-fit on my LMM truck that would be required to run the cluster.
I am still wondering about remote start, that would be nice because my property fronts on a highway so I don't get the luxury of driving through a neighborhood to warm up the engine and do not like blasting onto the highway with a cold engine, I use it regularly on my 08 3500HD.
I am sure the LMM I am running in the Humvee had it but the LBZ did not come with that option.

Tow/haul isn't required for the turbo brake modification to the LBZ. Once activated, the turbo vanes close IF the torque converter is in lock up AND there is zero throttle input. The turbo brake automatically switches off when rpms drop below ~1100. TC is in lock up more often in tow/haul. I did this mod just last year and I use it regularly to keep the turbo vanes free. It works best in the lower gears. Best regards, Jack