I have a 2017 Focus RS with a mountune tune by Randy. A month ago I installed an intercooler. I drove it a few times with no issues. This week I installed a mishimoto hot side pipe. When I started the car it immediately indicated drive modes were unavailable and the check engine light came on. I shut it down and during a visual inspection discovered the MAP sensor was unplugged. I plugged the sensor in and the drive modes are available, but the check engine light remained. I disconnected the battery for five seconds, but the check engine light still remains. Could the combination of intercooler and mishimoto pipe be causing a lean condition? I'm thinking of uninstalling the tune to see if the stock parameters will adapt to the modifications I've made. The cars intake and air inlet pipes are stock.