× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P1093 Diagnostic Trouble Code Discussion for September 2014

Fuel Rail Pressure Low During Power Enrichment


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1093
Help Request Posted
2005 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK23205
P1093: Fuel Rail Pressure Low During Power Enrichment. We have no injector pulse at injectors. We have tried a known good crank sensor with no luck. Voltage 1 circuit(s) into FICM is battery voltage, 12.4v, KOEO. Voltage drop on grounds at FICM is less than .09v. Injector supply voltage from FICM is 3.5v on connec...
September 05, 2014
2005 GMC Sierra 2500 HD SLE 6.6L No Start VIN: 1GTHK23205
P1093: Fuel Rail Pressure Low During Power Enrichment. We have no injector pulse at injectors. We have tried a known good crank sensor with no luck. Voltage 1 circuit(s) into FICM is battery voltage, 12.4v, KOEO. Voltage drop on grounds at FICM is less than .09v. Injector supply voltage from FICM is 3.5v on connec...
September 08, 2014