A 2005 Chevy Truck Silverado 2500 4WD V8-6.6L DSL Turbo VIN 2 won't start with out a squirt of wd40 or carb cleaner. Runs good, but won't start at all even when hot. Has a code DTC P1094, Fuel Rail Pressure Low During Idle or Decel Fuel Cut-Off (DFCO). The fue... Login to read more.