P2291 Code: Easy Steps to Solve It
The P2291 trouble code is a diagnostic trouble code (DTC) indicating “Injector Control Pressure Too Low – Engine Cranking.” This code is primarily associated with diesel engines but can also appear in gasoline direct injection systems. When the powertrain control module (PCM) detects that the injector control pressure is below the manufacturer’s specified threshold during engine cranking, it triggers this code. Understanding the causes, symptoms,