GDE is recommending to wait until they sift through the factory tune with the new AEM if you will need them to flash your tuned ECU. If you have a spare no big deal, install the factory ECU and swap back after the AEM is applied.It sounded like GDE is recommending waiting to put the tune back in until they do more research.
These customers will need to remove the oil pressure sensing kit and reinstall stock oil switch and wiring. It will read low pressure, but after you get the AEM, it will be back to normal. When you get the GDE tune update, reinstall the oil pressure kit.GDE, how about some guidance for those of us with your Oil Pressure kit.
Do we swap it back to OEM and run into the dealer for the AEM with a check engine light? Or do we leave it as-is which will cause a check engine light after the AEM?
Short answer is No. (And I presume you mean June 6 and not May 6...)My apologies, but I'm a little confused by this. If we went to the dealer and got the AEM now, and then sent in our ECM for re-flashing....wouldn't GDE just be able to re-flash with the last generation of software. I.e. after re-flashing my ECM would just go back to the software versions I have now? Sorry I'm just not following the threads here. I have an appointment on May 6 to get the AEM update, but I'm going to postpone that if I can't have a GDE replacement ECM waiting at my house when I get back from the dealer
I am confused now too... I got a response from GDE stating that if I had the orig. ECM, put it in, take the truck in and have them do the flash, re-install the GDE when I get home.... BUT then I see GDE is doing some updating of the firmware/software so I have to assume the updates are so they can write over the stock ECM that got overwritten by the AEM update. So, I'm not sure why the old s/w wouldn't work unless you are using the orig. ECM and they can't overwrite it. From GDE: "Plug and play, no changes needed. The update is only needed if the GDE tune is overwritten."Short answer is No. (And I presume you mean June 6 and not May 6...)
The reason is there are parameters and code in the new FCA program that may make the current GDE tune incompatible - rendering your truck a very large boat anchor. GDE is modifying their tune to work seamlessly with FCA's new ECM programming so that it transparently functions with your truck. Therefore you may have to drive with the AEM update for a while until GDE is ready to release their updated tune.