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P1093 Diagnostic Trouble Code Discussion for September 2014

Fuel Rail Pressure Low During Power Enrichment


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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