Quick question to this thread group. I have a 2019 VS30 4x4. I've been running the Race Chip for about 2 years. Early on, I was having issues with the peddle going flat to the floor with zero power during emergency or quick acceleration. I'm assuming the ECU trying to protect the engine under to high amount of boost pressure caused by the RaceChip? I turned the tune down a couple levels and the problem stopped.., for the most part. Then recently, I brought my van in to the dealer to address another of the 37 factory recalls I've had on the van. I forgot to turn the RaceChip off and back into factory mode when I brought it in, not realizing the recall was a remap of the ECU. Ever since this service, my check engine light has been on. My power is way down both with the RaceChip on and with it off. I can turn the RaceChip off and after 2-3 days the engine light goes off, but as soon as I turn the RaceChip back on the check engine light comes on and the power goes way down again.
Any thoughts on the best course of action to resolve this? I was thinking about removing the RaceChip and have the service tech do the ECU update again. But I am not knowledgeable enough about engine mapping and the interface with the RaceChip to understand if the problem is with the ECU being remapped with RaceChip on and interfering with the ECU update, the RaceChip not being compatible with the ECU now that it has been updated by Mercedes, or something completely outside of this? Any thoughts or ideas are greatly appreciated!