Ever had CTS2 and ECM bricking?

[496 BB]

Ok so just setup my CTS2 last night and worked just fine. Towed today on 125hp setting (4klbs) and wanted to see if egts were lower on another tune and everything went to crap when I loaded another cal in ecm. First off had to unplug the cts2 obviously and plugged in my V2 and proceeded to load my 40hp calibration. Says unable to detect device or something. Tried other tunes and same thing. No start. Service everything on dash. Annoying.

Full flashed my stock back in and then did a cal flash and everything was ok. Wtf caused this? Is this an issue on these controllers or is it cts2 problem? I updated the monitor before I even installed it yesterday so wasnt an update thing. Firmware is up to date on V2 unless they just released one in past couple weeks but even if thats true it still loads cals before the monitor.

Is it bad to switch back and forth on calibrations often? Maybe switch em few times a week depending on what Im doing/towing.

Thanks for any help. Too damn paranoid to even mess with it now.


Chris

 

[dirtydmax]

Dont think it would be any different than a dsp tune as far as switching tunes,needs learn time.

 

[496 BB]

Main question is why is CTS2 screwing up flashing tunes in?

 

[c20elephant]

EFI recommends all aftermarket accessories be unplugged including steroes, amps and alarms, any "traffic" on the CAN/BUS system can result in error when flashing

 

[04chase]

I unplug all my amps , lift pump ,etc when I flash. Ecms are sensitive too voltage fluctuations. Not sure how the edge would do anything regarding a flash as its never hooked up simultaneously as efi live

Sent from my SM-G900V using Tapatalk

 

[NC-smokinlmm]

Are you flashing it with the cts?

 

[496 BB]

Theres no way you CAN flash with CTS as it plugs into the DLC. I just unplugged the thing and it all went to hell from there with the error codes on my V2.

 

[NC-smokinlmm]

Ok, just checking, I thought maybe they had something new for the LML. Mine has bricked a few times, the LML is just finicky...

 

[496 BB]

Weird. Flashed again last night and everything was fine. This trucks ECM is more sensitive than my wife and I didnt think that was possible.

 

[GMC_2002_Dmax]

I have found that a few things will help or hurt the flash, I also have a CTS, but I have a OBD2 splitter cable, so My CTS never has to be unplugged.

I connect my Autocal to the OBD2 splitter and let it power up before I key on, I also never change tunes on a cold vehicle as the electrical draw is less once it has reached operating temps and the battery has recharged from sitting/starting/running.

I key on and wait 20-30 seconds, door shut, dome light off, Nav off, HVAC off, no electrical draws.

Cal Flash, wait until the message to key off pops up and I wait until the modules come back alive in the Bus, the locks will cycle or you will hear a module or two come alive, then I key off for 60 seconds.

Never had an issue doing that.

:thumb:

And I have flashed my truck 250+ times, that would be a conservative estimate of flashes, many of them full flashes to cross test the 11-14 OS changes in my 2012.

 

[c20elephant]

Tony, could you post the brand of OBD-II splitter you're using.?