Thanks - will check the code tomorrow when my new OBD Scanner comes. If they give me that much of an issue with it I can always throw the old air box back on I kept it for situations like this.You definitely want to find your scanner and get the code. It may or may not be the CAI. The fact that you’ve had it installed a month wouldn’t mean it can’t cause problems. Mods don’t cause issues all the time. Under certain conditions airflow, oxygen sensors, etc get pushed outside the tolerance they are programmed for and trip the sensor. If it is related to the MAF, just reset it. If it isn’t, the dealer needs to fix it and not point to your CAI (which is not a serious performance mod they can get upset about).
If its related to MAF just reset the code through the scanner?