Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Missing Wiring Harness for FTP Sensor? › Reply To: Missing Wiring Harness for FTP Sensor? October 2, 2020 at 11:53 am #963969 James LParticipant Update: the code for the service engine soon disappeared and now I’m reading, P0174 ( MAF sensor ).