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P1093 Diagnostic Trouble Code Discussion for April 2008

Fuel Rail Pressure Low During Power Enrichment

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Trouble Ticket Help Requests for DTC P1093
Help Request Posted
2004 GMC Sierra 2500 HD SLE 6.6L Hesitation VIN: 1GTHK24284
P1093: Fuel Rail Pressure Low During Power Enrichment. Diesel Gurus, Please help! This customer says that when pulling his cattle trailer this truck will belch black smoke from exhaust, will lay down on power, and the transmission shifts funny. Then, like someone flipped a switch, power comes back and smoke goes a...
April 09, 2008