• Dec 16, 2025 detroit deseil fault code list bing r faulty fuel pressure sensor. P0089 : Fuel Rail/System Pressure Too High Cause: Faulty pressure regulator or sensor, blocked fuel return line. P1093 : Fuel Injection System Leak Detected Cause: Leaking injectors or fuel lines. Air Intake and Exhaust Faults P0401 : Exhaust G By Gregory Jast
