Hey guys, just a little public service announcement regarding potential Intune tuner issues and FiST's. I have an Intune tuner for another car, and had a spare license for Fords, so I thought, "what the heck?" and decided to try out their 91 Octane tune on my 2016 Fiesta ST (sub 10k miles). The tune threw two codes (PCM0C00: Drive Motor A Current and PCM3400: Cylinder Deactivation Malfunction, odd right?) and also caused the engine to enter a 'limp mode' which felt like zero-boost. The CEL came on as well as the service soon light. A on/off cycle resets the limp mode. I logged it, went back to stock, and let Diablo know.
Now, to be fair, they did try. I received a custom tune which caused the same codes and same 'limp-mode' actions. This was triggered by WoT and/or going over 6k RPM. Again, another log, send the tunes back, and go back to stock. Rather than getting another custom tune, I was told to merely update my unit and it should fix it. Again, limp-mode was triggered, along with a new code (PCM:C0200: ISO/SAE Reserved). At this point I decided to simply use the tuner to run the stock tune with a modified tire size to account for my 215/40/17 tires. They offered to continue troubleshooting, but as I go towards canned tunes for ease-of-use and the lack of headaches, I decided to seek a refund and go with either Mountune or Cobb in the future.
They could not say what the issue actually was, but did say it did not appear to be Fiesta ST wide. As Diablosport isn't widely used in the community, I don't actually know the truth of this.
Now, to be fair, they did try. I received a custom tune which caused the same codes and same 'limp-mode' actions. This was triggered by WoT and/or going over 6k RPM. Again, another log, send the tunes back, and go back to stock. Rather than getting another custom tune, I was told to merely update my unit and it should fix it. Again, limp-mode was triggered, along with a new code (PCM:C0200: ISO/SAE Reserved). At this point I decided to simply use the tuner to run the stock tune with a modified tire size to account for my 215/40/17 tires. They offered to continue troubleshooting, but as I go towards canned tunes for ease-of-use and the lack of headaches, I decided to seek a refund and go with either Mountune or Cobb in the future.
They could not say what the issue actually was, but did say it did not appear to be Fiesta ST wide. As Diablosport isn't widely used in the community, I don't actually know the truth of this.