NGC or GPEC2?

NGC or GPEC2?

Funny, I thought this was a different thread. I see what it is now. :D

Dantra said
With my Sublime harness, it does have an AC input trigger but I believe it is just that.. It allows me to utilize the factory engine harness, to control the AC wiring to the compressor. It routes through a seperate relay to keep any load off the ecm. I don't believe it turns off at WOT. The compressor that must be used is the single plug style and not the variable version, with 2 plugs. ANd turning the AC on, does not kick my fans on. My fans pretty much run constant, once it reaches temp.. so I just let it hit temp, which happens pretty quick, and then turn on AC. WHen I asked Blake if it could be set to control fans, he said it's possible through the SGA trans controller , but there's a few hoops. I could also add a relay to kick the fans on, off the AC trigger, but I'd need to add diodes so it doesn't backfeed into the ecm

Basically, you can run a wire from your panel, through a binary or trinary switch and to the compressor.

I guess I assumed that the Sublime kit would run it through the PCM. The wiring diagram I have for a '15-18 Charger shows the PCM controlling the AC clutch, but I probably assumed too much. As I look at it now, I don't see a way for the PCM to know that the AC has been turned on beyond the CANBus network so it's probably pointless to hook the PCM to the AC clutch if there isn't a way to tell it to turn it on. Maybe that's what Blake meant with the SGA controller, it could send the signal to turn it on?

Dantra said
I do know that the 2014 GPEC2 ECM is a brick. I have one on the shelf and it's good for nothing.

Is that the one you have been running and was missing the tables you needed?

Dantra said
It's my understanding that in order for the GPEC2 to be used in a swap, it basically has to be flashed to mimic the Mopar crate version of a ecm. There's body control modules, skim, cluster etc that are used in conjunction .

That was my conclusion as well. Best I can tell, if it weren't for the start signal being on the CANBus and the need for an SSR, it might be easier to use a GPEC2, but it's just a guess on my part. Either way, it's mostly why I ended up planning for an NGC controller.

Sure seems like an SSR shouldn't be that hard to do. I know Blake said in a video at some point (on FB maybe??) that the only currewnt source for an SSR was not a good solution and that if it doesn't fail, it floods the network with the message, clogging it up and making it impossible to use the OBD2 port to do anything. Sure seems like someone could easily build a module that sends the message like 5 time (or less?) when it get's voltage on a wire and then goes silent. But maybe I am over simplifying things.